When I work with new officials, I try to:
1) Have a good pre-game. We cover just the basics, but thoroughly. I want my partner to know what I expect, what he can expect from me, and to not be surprised by anything we can reasonably anticipate.
2) Handle everything outside the lines: table issues, coaches, everything else. He/she has enough to deal with just calling the game. That's where I want his/her focus.
3) Find reasons to compliment them and build up their confidence.
4) Handle "teaching moments" in a positive way
5) Have as detailed a post-game as my partner wants, and let them lead that discussion wherever he/she needs it to go
6) Do what I can to ensure my partner has a good experience
But that's just me
