I would stay there and wait to see what activities happen, and if its lame then leave and find somewhere fun.
I wait around to see what the activites are. If I feel endangered or I don't like the activites then I'll leave.
I would wait to be the last one so I could see what activities are going on before I go in.
I would ask what activities are going to be going on at the place this person is at.
call someone to come pick me up
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