Hey-walk

When you're out and about and you see someone you know but don't have the time (or patience) to talk to them, so you say "hey!" but don't break stride and continue on your way.

Me: I saw Joe the other day when I was out to lunch
You: How is he?
Me: Not sure, I hey-walked him.

Hey I’m walking here

This is usually said by the crappy-feeling New Yorkers before their sixth cup of coffee.

Said wearing all black with New York accent.

BMW: Honks before the light is green while pedestrians are crossing on crosswalk

Pedestrian: Hey I’m walking here!