Affiliate Marketing Secrets

I am not a Buddhist and have never been to a service before, so I know nothing about it. However I really want to go to a service and see a little bit what the religion is like! So I have a few questions.
First, would it be accepted for me to attend a service if I’m not affiliated with the religion at all, or would that be frowned upon?
Secondly, what types of things do they do? I have been to a Christian church service before; is it at all similar to that?
Is there anything that you think may catch the average American off-guard? Just so I can be expecting & not be too surprised by anything, like a deer in headlights.
I think that’s it. Thanks!