Our school has an all-Greek Bible study! It isn't mandatory for anyone, you just go if/when you feel like it. I've never been to the one at our school, but I'm sure it is great way to connect with other greeks.
Something else you could do is have study sessions in the library together
This would be cool b/c you get to meet new Greeks, study, and also get help if you need it. (With so many people there, there is *bound* to be someone who would be able to help you if you or another greek member had a problem with something on homework
)