As the semester approaches, one of the things I've been looking forward to is seeing and interacting with many of the friends I've not seen over the summer. However, nearly all of my friends are committed Roman Catholics who are heavily involved with campus ministry, which makes things kinda awkward. Before I converted to Orthodoxy from Catholicism, I too was involved with campus ministry and met many of these friends during that time when we shared the same faith. Because of this, and the fact that I'll be trying to start my own Orthodox group on campus, I've been a bit unsure about how I should interact with them this year. I want to be friendly and work together on common goals (such as helping the poor), but am afraid of coming off as "I'm ok, you're ok" or "we're really all the same".
What guidelines do you think I should set in terms of interacting with them? I understand that we cannot worship together, but would participating in a bible study be ok? What about social functions?