Obito was amused by Gai's reaction to his admitedly backhanded compliment... right up until the other teen grabbed him. He figured out what he was on about quickly enough, of course, but he couldn't prevent the way he tensed slightly... nor the mortified blush because no one ever touched his face.

In fact he couldn't recall anyone having touched his face since he got all the scars in any way that wasn't medically related and it sort of made his brain stumble as he tried to figure out how to react. This whole conversation had gone really weird really fast and he really didn't know how it had happened.

And why didn't the other teen take his hand back...???

He didn't pull away though, letting himself be handled as his sharingan was looked at. He hadn't really been up to showing it off and that part was... nice.

He finally found his voice when Gai finally started talking again though, otherwise that could have gotten... awkward. "I don't do holding still very well. I fidget unless I make myself stop so... yeah. Not surprised I'm properly mobile again. But. Um. Are you sure weights are a good idea while I'm still leaning on trees?"