I'm going to a Buddhist service for a class assignment next weekend.
I need to know how to dress. Under normal circumstances, I'd follow the thought process that overdressed is always the side to err on, but I really, really don't want to stick out in the crowd (more than someone with a ginormous goatee and big black discs in his ears already does).
I don't wish to post the site for the place I'm going for a whole bunch of reasons, but if it will help shape your advice, I can PM it to you.
Wear clean socks.