Being watched was something Gai was used to. He was stared at a lot for his weirdness, but whenever Obito watched him, Gai felt proud, pleased and now, he was discovering, desirable. Even if Obito was just watching for the sake of watching, it gave Gai a rush he wasn't used to. And maybe he took a little longer with his task than actually necessary, but only because he enjoyed those eyes on him.