One Thing Learned from Experience, One from Observation

1) Don't wear a tight nude cami that hangs out below the shirt you are wearing it under. It looks suspiciously like Spanx. No need to have everyone you come in contact with think you are wearing a support undergarment, and wearing it badly.

2) Don't be like that guy in the meeting who likes to hear himself talk, and when he does talk, he sits back with his hands folded behind his head as if they were holding his head up. Especially don't do this for five minutes straight--it makes everyone feel awkward. And sort of makes you look like a db.