Dance Party Tuesday?

On my way into work this morning i had to stand because all the seats were taken.
Then I noticed the man next to be was talking to himself-
 atleast I totally thought he was talking to himself. But after awhile he started to dance around... that is when i realized he'd been singing to himself!

Then the dancing got serious-
this guy: baggy jeans, button down pressed shirt, bandana hanging out of his back pocket, fresh new kicks, and he smelled awesome! Was full out dancing on the light rail.

and he could dance.
pumping his fists, throwing up his hands, backing it into an unsuspecting businessman.

But i'm really confused because he just had a blue tooth in his ear?
Do those play music?
Or was he on the phone with a friend who was playing him a tune?
Or, is his ipod broken so before he left home he turned on his stereo, called his blue tooth from his home phone and left it on the line so he could listen on the way to....
wherever he was going.

Have you ever seen improv everywhere?
It was just like that!!!
Which is funny because i've always wanted to participate in a spontanious musical, and I never guessed i'd be the random girl standing by.

Anyway, 3 or 4 stops in a seat became available...
I took it, still facing him, and put in my headphones with some will i am.
Now the dude was dancing right on beat with my music.

Why can't every day start out with a dance party????