1.Arriving late. ...

2.Arriving too early. ...

3.Appearing unpolished. ...

4.Not bringing a resume. ...

5.Displaying low energy. ...

6.Focusing too much on themselves. ...

7.Seeming unprepared. ...

8.Not having any questions.

9. Asking weirdly personal questions

10. Forgetting to follow up

11. Following up too aggressively