

I suspect that they looked at you because your were obviously nervous.
No one cares, coming from a non coffee person as well. My wife is a teacher and gets a lot of Starbucks gift cards, neither of us drink coffee. So we just use it for road trips and hot chocolate.



Depends how long the time loop is. Hopefully not like 6 seconds, but a day.
If it was a reasonable amount of time in the loop, I would start learning everything I could, like languages, stem topics, etc.
But I would also try to experience as much as possible. Learn how to speak in front of crowds, how much of a pain tolerance can I have, fear of heights, that sort of things.
Basically imagination is the only limiting factor.