By far the best way to draw a crowd to your booth at ICAST is by having something truly "new" and innovative. It happens at every show. Something different comes along and it creates a buzz. Instead of stumbling across it by accident, someone you know sees you in the aisles and says, "Hey, Ken, you gotta see this!" Then they drag you past hundreds of other booths to the one that's going to make your day and have you asking, "Why didn't I think of that?"
Sometimes I think the best way to see ICAST is to stand in the middle of the exhibition floor and wait for friends to walk by and say, "Have you seen the ___ over at the ___ booth? You need to check that out!"