Great tips Alena, I would add the following to that:
1. Giving out confidential information about your current/previous employer.
2. Giving short direct answers without going into depth about what you are being asked for.
3. Talking too much about your self.
4. Being embarrassed to say "i don't know what that term means" and actually talking about something you know nothing about!
If I remember more mistakes i will post them!
