I try to imagine that the beer I am judging was made by some high ranking bjcp judge, say Gordon Strong. This keeps me from making really stupid comments most of the time.
I imagine what I would think if I got that score sheet back. Is it complete? Are they getting their money's worth? Am I offering constructive criticisms (if necessary)? Can they read my handwriting?
Good comments from both of you. I'd like to say that I follow all of the above.
...Except I'm not so sure about that last part. *I* can barely read my handwriting. I definitely owe many many beers to anyone who has had to grade one of my exams.