Sociophobia.

Geto has severe sociophobia.

He never talks to anyone and is always skittish and silent. His days usually avoid people and stay inside more. Its like he never has a mouth to himself. He loves cats and going out for grunge clothing. Though he always avoids people and goes to the self-checkout when he does go outside.

Although how quiet he was. All the girls liked him, they took his quiet demeanor as a nonchalant bad-boy who had issues. The truth was he was scared and nervous, wanting to talk to people but didn't know how. He was smart but stayed silent when the teacher asked a question.