Gladness

Me, commenting on my girl's speed at constructing Pizza Hut boxes: You seem to be going slower than usual today.

My girl: I wanna go home.

Me: I'm glad to be back at work. Too much vacation!

My girl: You are?

Me: Yes, definitely. Maybe my gladness will rub off on you. [I go over and rub my forearm on her upper arm.]

My girl: You're right! It worked! [She starts constructing boxes twice as quickly as before.]