eWEEK.com carries an item entitled "10 Avoidable IT Interview Flubs" http://www.eweek.com/article2/0,1895,2011169,00.asp . I think such mistakes should be avoided for all types of job interviews. 1. Late to the interview means late on projects and deadlines 2. Lack of enthusiasm means you don't care about your work 3. Little to no company knowledge means you lack research skills 4. Inappropriate dress translates to inappropriate work 5. Too negative is too much: Spells P-R-O-B-L-E-M 6. Arrogance or dominating the interview signals conflict on teams 7. Too quiet means you lack confidence in your work 8. Misstating qualifications means, well, you're a liar 9. Speaking only tech-ese means you won't work well with others 10. Not saying thank you is not welcome --Sukhdev Singh, NIC.