While most of us know you should not bring your dog to the interview, text, eat, show up drunk,or invite the interviewer into some crazy physical challenge, here are 15 ways to annoy your interviewer that may be worth or a quick review.

Impressions are formed in less than 90 seconds so if you have a tendency to be guilty of these try to minimize them.  If all the following traits afflict you in the interview process you had better hope the company starts, and ends with, a phone interview!

Gum Chewing:  Looks unprofessional and can be easily avoided by removing the gum, hopefully not behind your ear in sight of the hiring individual.

Hair Twirling:  Makes a lady look young and silly. Ask a friend if you are prone to this habit and fix your hair to avoid easy twirling access.

Slouching:  Mom always said not to slouch.  Slouching can convey lethargy, boredom, and lack of confidence.

Avoiding Eye Contact:  You may give the vibe that you are hiding something. In an interview that is not what you want to convey.  If looking in the eye is weird focus on they nose of the interviewer.

Knee Jiggling or finger drumming:   Unless I am hiring for a drummer or a dancer these need to be restrained.  Relax and breath deeply.

Yawning:  Nothing will set the interviewer to run several less than appealing scenarios in their head as to why you are yawning.   Ensure you are caffeinated and well rested.

Playing with the Pen:  Just put it out of your hands.

Checking your Cell Phone:   If you forget to turn off the ringer, silence it and apologize for the interruption and put it down and do not answer. 

Nail biting:  Never a good idea in any public setting.

Sniffling:   Do your best to medicate or hit the restroom prior to arrival to minimize the amount of sniffling.

Picking at or rubbing any part of your body:  Again never a good idea in a public setting.

Waiving your hands while speaking:  Utilizing hand gestures is a great idea for a public speaker.  Utilizing hand gestures may be an optimal case where less is more.   Again consult with a friend if you believe this may be an issue for you.

Tugging at your cuffs or hem of your dress.   Fiddling with your clothes can give the impression of discomfort or insecurity.   The interviewer may think you are not used to a tie or your dress and may think you will need to adjust to a dress code if applicable.

Resting your chin on your hand:  Are you bored, tired, annoyed, wishing you were someplace rather than here?   Save it for the Glamour Shots photo.

Smiling too Much (or lack of a smile):   You want to blend in and smiling as a nervous habit may convey you are a con artist or a fake.

Another tip to remember is that once you step onto company property or even before you arrive there may be eyes on you which may form an opinion. The following true life event happened and is a valuable lesson.

In the past I have witnessed where the candidate for an executive position was rude to the receptionist.  His behavior was reported to the hiring manager who was contacted by the receptionist.  He was immediately removed from the short list.    He showed his true colors in that short interaction with the receptionist.  The hiring manager knew the receptionist was regarded as a true professional who you could almost see the smile through the phone. The candidate was eliminated as a prospective candidate.  

Source:  Karen Burns- Author of The Amazing Adventures of Working Girl: Real-Life Career Advice You Can Actually Use.