1. Wearing the wrong outfit
The way you dress matters most as it gives the interviewer first impression about you even before establishing oral communication with you. You are advised to dress formally when going for an interview always
2. Getting late to interview centre
Plan your travel time to accommodate delays on the road. Arriving a few minutes early helps you to settle down and probably review all you have prepared.
3. Using your cellphone
Never use your cellphone during an interview. The interviewer may see it as a rude behavior. You are expected to turn off your phone or reduce the volume to the lowest to avoid distraction.
4. Badmouthing Present or Past Employers
Do not talk bad about your present or past employers. Your interviewer will feel you will do the same to them by the time you are no longer working with them