I want them to look relaxed and I'd like it to give the impression of being unscripted. I've never done one before. Any tips?

If you can keep a coversation, you'll be fine. I find that if I keep yacking with them and asking questions, it keeps the expressions going.

Just when you are at the brink of no more fun shots, ask them how they met. I usually get a great expression or laugh with that one question.

If you keep relaxed they will be relaxed.

Good Luck,

db

bark at them like a dog. (not like a carny) that always works for me or just have the guy whisper something inappropriate in her ear. that always gets a cute smile or coy look.