Kottke posts Guidelines for focusing on learning:

1. Release the need to be right.
2. Welcome one another's thoughts and opinions.
3. Suspend judgment.
4. Listen for understanding, not rebuttal.
5. Make personal statements by using "I" rather than "you".
6. Clarify first what was said before you challenge someone.
7. Take time to reflect.
8. Lean into discomfort.
9. Respond first to what was said before making your point.
10. Have fun.

Normally, I wouldn't just copy the entire list here, but I really like this list. I'd like to think that I do these things, but I'm sure I have a long way to go (and I'm even more sure that my co-workers would agree). It's a great set of guidelines for all of us.