So serious question here...

How do I get my dog to stop jumping up?

Whenever he greets a stranger he gets all hyped up and then he comes to me desperately wanting me to pick him up.
He jumps and jumps even if I tell him to stop.
Pulling at my clothes, almost like he's trying to get away.
When he falls on his back I can't help but pick him up and then I tell him to calm down.
His hearts racing and I calm him down.
I then say to him I will put you down now.

He stays still I put my hand on his chest and tell him to calm down.

And he resumes his normal behaviour.