I thought that an emotion for a prompt would immediately conjure up the sense of character in the writer's mind. Personally, I tend to start with a sense of character--it's sort of like tuning into an impulse, other than one's own. It's no use my describing the ocean in prose if I don't know who is looking at it--or at least have a strong sense that I want to know them.

I need characters to see something for me, in their own way, so that I will never see it the same way again. If the characters are rich, they will enrich me. There are obvious scenarios that come to mind when we think of embarrassment, but all of those should be run a mile from. Or at least, the writer should attempt to run a mile from them, even if they run in a circle, or run out of breath after a few metres. That could also be interesting.