I don't honestly think so.
Tobias was just bullied, and as such, would naturally be suspicious of others. This would lead to higher levels of social alienation, both self-inflicted due to the aforementioned suspicion, as well as a consequence of few people wanting to hang out with the 'loser' who always got bullied. Being ostracized, he wouldn't gain much social experience, explaining the awkwardness.
As for facial expressions - Like Anitiger said, hawks don't make them.