Things not to do - because you are an emes'e ben [or bas] torah:
1] Look at your watch as he is talking to you. This says - "I gotta get out of here".
2] During a conversation, look around in other directions and not at the person. This says "You are not interesting".
3] Have loud conversations on your phone in public, especially on public transportation. Nobody wants to hear you. No offense.
4] When you are feeling criticized - get defensive. This only fuels the flames. Instead repeat the other persons criticism, try to understand it, ask the person if you got it right - then apologize. If you believe you are right - G-d knows.
5] Don't answer phone calls. Or emails. It shows the sender that he is not important.
6] If you are angry with someone - attack him.
7] Think about your own problems as if they are the BIGGEST problems in the world while assuring yourself that your friend's problems aren't nearly as bad.
8] Know that you deserve things, so your mother and/or wife are here to serve you. If they don't - let them know.
9] When you borrow something, a book or money etc. don't return it. This is a common phenomenom. Too common.
10] Don't say thank you to the cab driver, cook, waiter etc. etc. Don't say "shkoyach" to the chazzan. It will make them feel good.
I hope the message is clear.
:)
Love and blessings!