1. If you get a cell phone call in public, you either ignore it or move to a private place to talk.
  2. If you go to a friend's house for dinner or drinks, you bring a little gift - like wine or flowers.
  3. If you're going to an event and unsure of the dress code, you err on the side of more formal. You don't get caught wearing jeans when it's not appropriate.
  4. You only curse around people you know don't mind swearing.
  5. If you receive a gift, you respond promptly with a hand written thank you note.
  6. If you receive an interesting email or message forward, you resist sending passing on to your friends.
  7. You tip 15-20% at minimum. And when you're not sure if tipping is appropriate, you still tip anyway.
  8. You don't ask to borrow items from friends. If you really want something, you just buy it.
  9. When dining with other people, you take small bites, eat neatly, and never talk with your mouth full.
  10. When someone emails you, you respond within 24 to 48 hours.