The question:

How does Hajamin get all these signs to give out in the first place?

The answer:

He is given them by others!

Good sign!

Hajamin sounds like he gives out so many signs I'm beginning to wonder if he isn't in fact actually Bill Engvall.

Am I the only person who can't actually see the signs?

Or are they "signs"?

There's nothing to see. Don't worry about it.

If you don't know what the sign business is, check here.

http://www.snopes.com/humor/jokes/heresign.htm