Look for a team name you "recognize" (maybe from FoodTV) and just talk them up. Friday is a good time for this. Another tact is to find a team using a cooker you're interested in and, again, talk 'em up! Most guys will definately talk about their cookers.
Tell them you're interested in competing - ask whatever question is on your mind - they've probably heard the all but that's part of being out in the public.
If some of the rub and sauce vendors are there talk to them about their rub, sauce, etc.
DO NOT offer any suggestions! :D
Southern Brethren BBQ Competition Team
"It's all about getting paid!" - Myron Mixon
"I love being hated in my hometown!" - David Hair
KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker