Unlike most Vulcan/Human who control their emotion, Tu'Cul has chosen his human side. he openly express his emotion without any problems. He smiles, he laughs, he can even tell a joke some times. He does get angry, but he can control it as well. He still uses logic. Despite most Vulcans not approving his uses of emotions, he is still being used as a exemplary example at the Vulcan science academy.
Despite having emotion, Tu'Cul always uses Logic in any situation. He like to drink and have fun on his time off. He also meditates on occasion when trying to figure out a problem.