I'm sorry if this has been asked and answered before.
I'm hoping to attend the paraklesis service tonight at my local Greek Orthodox church. However, I've never attended a paraklesis before.
My question: is there any part of the service that a non-Orthodox should refrain from doing/receiving? I always thought that a non-Orthodox should refrain from the holy mysteries, but after searching online, there seems to be some disagreement about whether a non-Orthodox should refrain from other things, like venerating the blessing cross.
Any answers would be much appreciated!