By Laura Smith-Proloux,

As a former hiring manager in several consulting firms, I often wondered if candidates were cognizant of the impression they made on employers.

Even small things, such as the frown displayed by an applicant upon arriving at an interview, or the worn-out jeans on an applicant in a roomful of suits, gave me pause as I worked to screen candidates.

Ironically, many of the issues I spotted were easily fixed by taking care of seemingly minor issues. In some cases, these corrections would have made the difference in making the hire vs. taking a pass on the applicant!

Here are 10 “little” things that make a big difference to hiring managers in your job search:

1. Your Digital Identity

Yes, hiring authorities will be checking out your LinkedIn presence and verifying that your Facebook activity is not violating their corporate policies. But have you stopped to think about your Tweets or the content you’re giving a +1 on Google+?

Even the most realistic employer will need to assess your liability as a potential new hire. Therefore, your online activity must be sufficiently toned-down and presentable to a potential company—long before you enter the job market.

If you’ve kept up a website on your middle-of-the-night gaming habit or constantly Tweeted your distaste for political candidates, these items can offend hiring managers—and cause them to rethink bringing you in for an interview.

2. Your Honesty

Struggling to hide gaps in your work history on your resume? Failing to mention that new job you just took (that isn’t working out)?

White lies or sins of omission on your resume and in your interviews will come back to haunt you in more than one way. If interviewers don’t catch these items during the resume screening process, there’s still a chance that your background check will reveal all.

Even after you’re hired, your record of impeccable service won’t make up for less-than-forthright stories on your resume or LinkedIn Profile.

Stories abound of high-profile executives, entertainment professionals, and sports coaches who attended college but didn’t graduate—and who paid the price for fudging these resume details years down the road.

3. Your Accessibility

Are you open enough on LinkedIn that others can contact you? Or, did you forget to make your email address (and possibly mobile number) visible to other users?

Here are best practices for ensuring you’re more easily reached on LinkedIn:

• From the “Edit Profile” menu, look under the box with your name and headline for “Edit Contact Info.” Here, you can fill in your email address and phone numbers—but don’t stop there! Also, add your email address to your Summary section, which will make it easier for users outside your network to contact you.
• Joining Groups is also an important step in becoming accessible to employers. Sharing a Group with another user means he or she can reach out to you for free (important to recruiters maximizing their LinkedIn budgets).
• Don’t forget the Contact information section; select Privacy & Settings from the top right (hover the mouse under your name). Choose the “Communication” tab at the bottom left, and “Select the types of messages you’re willing to receive.” Add a paragraph in the “Advice to People Who Are Contacting You” box that includes your preference for email, phone, or LinkedIn messages.

4. Your Job Search Follow Up

Sent in a resume, but failed to take any action beyond pressing the Send button? If you didn’t spend some time following up or identifying company insiders for further networking, your job search will take longer.

Doing some homework on the employer’s business needs and identifying key people for personal follow-up (through LinkedIn or an online search) shows them you’re truly interested in a career opportunity, and that you’ve given thought to solving their business problems.

Be sure to use formal channels when applying to a posted job, then reach out to your newly found contacts to reiterate your interest in joining the company.

5. The Tone Of Your Cover Letter Or LinkedIn Message

Cranking out LinkedIn InMail messages or cover letters at top speed—with just a few adjustments here and there? Hiring managers can smell a “form letter” approach a mile away.

Nothing says “I’m desperate and don’t care about your needs” more than a disjointed cover letter or a LinkedIn message that simply asks for a job.

No matter how you’re getting in touch with employers, take the time to write a brand-specific message of value to them—helping them discover who you are, what you offer, and why you’re interested in a position with their company.

6. Your Demeanor When Arranging The Interview

When setting up any kind of a business meeting, there’s a certain amount of give and take required for coordination.

No matter how in-demand your skills may be, you’ll be expected to acquiesce to interview timing and location parameters set by employers. That can mean dealing with less-than-helpful receptionists or HR personnel, all of whom will be taking notes on your reactions.

Your phone etiquette and e-mail communications will be watched closely; a courteous and respectful tone will go miles in reinforcing your professional brand.

7. Your Appraisal Of The Interviewer

Feeling put out by the fact that your interviewer appears younger, more inexperienced, or otherwise beneath you in the professional hierarchy?

Be careful how you convey this disapproval. You may believe you’re hiding these feelings (yet, as one of those younger-looking interviewers, I often picked up on this tone very quickly!).

Even if you decide mid-interview that you’re not interested in the company, remember to display a high degree of professionalism. You never know how well-connected your interviewer might be.

8. Your Discretion

Polarizing, hot-button subjects such as politics or religion should make their way out of your resume, LinkedIn Profile, interview discussions, and side conversations.

No matter how neutral or popular you consider your stance to be on these topics, there’s bound to be someone who disagrees with you—and who votes against hiring you.

9. Your Post-Interview Actions

Yes, you should be sending a thank-you note to employers after your interviews!

Whether a short, handwritten card, LinkedIn message, email, or even hard-copy letter, a Thank You letter gives employers the impression you’re willing to convey appreciation for their time.

A post-interview note can also be used to address lingering questions, countering potential objections (“Regarding our discussion on your new Western region, I can assure you that I’m accustomed to handling accounts in-person for maximum effect – and therefore open to travel”).

Be sure to address your notes to each person you’ve encountered in the interview process, especially if you’ve met with a panel or group.

10. The Frequency Of Your Messages

Just because social media lets you send messages faster than ever doesn’t mean you should pester employers.

Following up once or twice after applying for a job should suffice to let them know of your interest. The same is true of the post-interview period.

Hiring managers have companies to run and customers to serve, in addition to the process of choosing you. They may also have other candidates to consider.

Staying on employers’ radar is important, but so is professional discretion. Aim for somewhere in between silent and stalker in your follow-up activities.

In summary, there are numerous ways employers can be put off by your job search practices or approach. Ensure you’re taking steps to satisfy their need for information and put your best professional foot forward.