Pickup at Concerts - Help me strategize

Hey guys, I'm going to a concert this weekend in San Bernardino, CA, and I want to put together some material for working a venue like this. It's a two day outdoor festival. The first day is all local bands and actually some movies (hosted by Cheech and Chong!), and the second day is all big bands including the return of Sublime!

I figure parts of my normal day game will work, but is there any other advice people have? Specific routines?

I should also mention that this concert is VERY 420 friendly, and I will be partaking. I'd like to incorporate that into my game as well, but don't want to give anything away, just like I no longer buy a woman a drink.

So, any advice for this weekend?