Westley knows how to do two tricks. And when I say tricks I really just mean something besides sitting, sleeping and walking. He's really apathetic for the most part actually...
Here we have Exhibit A, Westley stands on his hinds in anticipation for his favorite treat, and the only thing that makes him excited - a greenie.
Exhibit B - Westley lays on his back for unusually long amounts of time whilst getting the city wiped off him with Earth Bath wipes. Extra points for magically morphing into a character from the Fantastic Mr. Fox.
We're currently working on "shake" ... but I expect a grim outcome since I gave up on "sit" back in July.