Here facebook is useful. Look up the event beforehand. Check out the list of people attending. You may have to say "yes" you're attending yourself to see it. This is okay, it's not a commitment to actually attending.
Indicators of a young fun crowd:
Dress code requirement
DJ
Dancing
Cocktails
No seating, you stand the whole event.
Indicators of a boring older crowd:
No mention of dress code.
Lecture
Performance
Dinner
Seated audience event.
Indicators of a young fun crowd:
Dress code requirement
DJ
Dancing
Cocktails
No seating, you stand the whole event.
Indicators of a boring older crowd:
No mention of dress code.
Lecture
Performance
Dinner
Seated audience event.
"Alpha children wear grey. They work much harder than we do, because they're so frightfully clever. I'm awfully glad I'm a Beta, because I don't work so hard. And then we are much better than the Gammas and Deltas. Gammas are stupid. They all wear green, and Delta children wear khaki. Oh no, I don't want to play with Delta children. And Epsilons are still worse. They're too stupid to be able to read or write. Besides they wear black, which is such a beastly color. I'm so glad I'm a Beta."
--Aldous Huxley, Brave New World