2 months in the MBA and I’ve not really made friends?

So I’m at a fairly international school (IE) and I’ve not really made friends yet? I hang out w the ppl from my class when the entire class goes out but idk why I’ve not been able to get into groups and stuff. I’m okay being by myself and have Always been social but idk I’m not making friends given how all ppl are now in their groups and doing things. Advice?