Bobby Drake, was, of course, amongst the crowd. He was mostly there for crowd control -- he'd made it clear that he'd conjure up some ice barriers if necessary, and if any of the kids got handsy with their guest, they'd get an instant cold shower. He'd promised to stop just shy of hypothermia. Lawsuits and all that.
Keeping the kids under control served to keep him occupied so that he wouldn't go into total fanboy mode himself. This was the Wonder Woman! He had a poster of her and everything -- mental note, Drake: don't tell her about the poster. This was the closest to her he'd ever been, including that book signing he'd attended that was cut short before he could get to her because she had to fight some monster.
Of course, he knew it would be all over the moment she looked in his direction.