Levi is shy, but because he has an intimidating look, students don't make fun of him being gay, which makes the other gay students upset. He has stage fright, and it kept him from auditioning last year.
"New Year, New Directions"- After auditions, Will realizes that Levi signed up, but didn't show. The next day they talk and Will says he will let Levi into New Directions if he sings in front of the whole club, not matter how bad of a singer he is. He performs so well that the club promises him a solo at Sectionals, as long as he conquers his stage fright.