Thank you, everyone - your replies were great and have given me a lot to think about.
I went to the shop on Saturday; we previewed the pattern and discussed various aspects of the class. Since the class is based on a kit we pre-assemble, color won't play a large part of the discussion. We will all be working on pieces that look identical, which will simplify matters a great deal. The 'mechanics' I'm not worried about at all - we've got that covered. (Although the peanut butter sandwich story is giving me pause LOL!) What I wanted to do my best to avoid is inadvertent behavior that leaves someone feeling bad - ie: not feeling part of the group. I cannot for the life of me imagine myself using a class participant's work as an example of what not to do - I think I can provide enough of those from my own work :wink:
I read a line in a book the other day, a reference to unintended rudeness happening quite frequently. That is the very last place I want to go, and all have you have helped me avoid that pitfall. Thank you so much!