Oooh, that's tough! Shorty's not really a very vocal dino, at least not in the 10th movie. It's not much of a line, but I'd have to say my favorite is directly after Cera tells him that, 'the trick is, not minding.' He is hit in the head by a rock, gets a very spaced out look on his face, and says 'Woooooaaah.'
I just think it's a neat look at a different aspect of his character.