There was a bunny! There was a BUNNY! It was here somewhere! Somewhere! Oh, the sniffs are intoxicating!
Tristan hasn't yet learned Yvaine's half-closed eyes, relaxed, almost mesmerized sniff-trailing method. Head down, lifting nose every few steps to check... something, possibly the wind or if there's a fresher scent on the air somewhere. He looks like he is having fun, though.