[Norm Lenhart]

Just walk through the crowd with a wireless mic and make them pan to you. They arent smart enough to realize what you’re up to.

[hoosiermama]

Run a contest with a free hat for the best crowd picture posted to a specific sight. Could do it with a Facebook post. Most likes by specific time wins

[spokeshave]

Bingo.....we have a winner

Just walk through the crowd with a wireless mic and make them pan to you.