ETA: The spring semester *just* ended last week, so things are most likely a little empty in the GA office right now. They will probably update the website for formal recruitment (and I think include an online registration option) within the next month.
Likewise, you'll probably get information in the mail about recruitment in the next month as well.
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It's gonna be a hootenanny.
Or maybe a jamboree.
Or possibly even a shindig or lollapalooza.
Perhaps it'll be a hootshinpaloozaree. I don't know.