Tavin comes of as aloof, sarcastic, and uncaring, but this is primarily because his sole focus is on his studies. He cares little for conversation with actual people, and instead uses most of his energy to attempt communication with Pokemon instead. Tavin sometimes gets a one track mind when it comes to his studies, and can often go days without sleeping or eating when he believes he's on to something big. He can also become scatterbrained, always loosing track of time or physical objects.
Tavin can also be quite immature, and has a love of pranks often carried out with help from his Zorua - a trickster pokemon. While Tavin is usually on the receiving end of most tricks, it's not unusual for the two to plot something out together. The two act more like frat boys than pokemon and Trainer, and are rarely seen apart.