[Preston327]

1. Email works but ideally I'd suggest talking to them in person. If you see someone wearing letters who isn't busy, just walk up and introduce yourself. Strike up a conversation, see what the organization is about and if its something you could see yourself a part of. If the conversation goes well he might introduce you to other brothers, giving you a better taste of what his organization is like.

2. I went to events from two groups, I don't know how typical this is. I'd say get to know all of the organizations on campus (I know here they all had tables on the main drag of campus where you could stop by and chat with them) and narrow it down to 1-3 you could really see yourself a part of. It should work out that you can make events for more than one group and I don't see any harm in doing so.

3. It really all depends on what the group is looking for. Being yourself is honestly the best thing you can do. However, I will say that when you rush, you should try and get to know everyone at least somewhat-well, without making it look like you're trying too hard. When they go to vote you're more likely to get a favorable outcome if everyone knows you and sees that you're genuine and laid-back about the whole experience.

ETA Disclaimer: I'm not Greek myself (though I have gone through one rush) so my word perhaps shouldn't be taken as law. Just some friendly advice based on what I've seen work.