My friend and I have hand motions we use to bail each other out of situations, which includes a parachute rip cord motion and flapping your hands above your head like an idiot motion. Or you can pull a Jenna Marbles.
Otherwise, I agree with the majority in telling staff or security.
-Modeling FB Page
2015 Con Schedule:
Naka kon-Anime Central-Gen Con-Anime Nebraskon
Naka kon 2015 Cosplays:
-Firefox Ahri from League of Legends: 50%
-Ryuko Mataoi from Kill La Kill: 90% (just need to fix some things)
Kotori from Love Live! (sheep costume): 5% (does ordering the wig count as progress? XD)