you chicago people need a secret handshake or yell. then you'd know who is who.

made some like:

"BLING! BLING! BIKEFORUMS!" and then shout something like "HOLLA OUT!" after
that definitely would not be mistaken for something else. well, maybe a freak or the sort.

that's pretty neutral for our neck of the woods, but i have no idea if that's how the peeps throw it down in chi town.