Chick-fil-A group interview advice? + Availability question

I have a group interview at Chick-fil-A tomorrow and it’s my first group interview 😭. I already did a video interview and got invited to this stage.

For anyone who’s done a Chick-fil-A group interview, what actually helped you stand out without being the loudest person in the room? Is it mostly participating in the discussion, making eye contact, agreeing with other people’s answers, etc.? And are there any questions or activities I should be prepared for?

Also, I’m a high-school student applying for part-time FOH. The posting says they require Saturday availability and evening closing shifts (10–11 PM). I’m available after 4 PM on weekdays and I’m most flexible Thursday–Saturday. I’m willing to work evenings/closing, but because of school I’d strongly prefer to do most of my closing shifts Thursday–Saturday.
Would that availability seriously hurt my chances, or is that pretty reasonable for a high-school student applying part-time?
Any advice is appreciate thanks in advance! 😭