Be gracious – Listen more than you speak. Pay attention when co-workers are talking to you. Don't interrupt people when they're speaking. Let them finish. If you must interrupt, say "excuse me," or if you catch yourself after the fact, say "Sorry for interrupting you." Don’t make personal remarks about someone’s appearance or clothing.  Keep judgmental or nasty comments to yourself and avoid gossiping and talking behind someone's back. Sharing credit, humbling asking questions, acknowledging others and smiling all have positive impacts and demonstrate civility.