Go in, look like a million dollars. Relax and wait for people to notice you.
In all honesty, if they accept you then you have some good firends. If they don't, what have you lost?
Either way, these things are a time to catch up, find out what everyone has been doing and perhaps compare notes.
What you've been doing is worth sharing.
Now, one more thing. And this is very important.
As soon as you return, a full write-up, posted on Susans'. I, for one, really want to hear how you get on.