Simon smiled in return - how could he not? The guy just had that effect, specially when John might be one of the few people that didn't have an agenda. He couldn't help the slight jerking away, but Simon didn't exactly shrug the big hand off either, which was a big step for him.
"We try. And, a gift." Dr. Tam's smile softened a little; he understood gifts. His head tilted forward: damn, was he tired and didn't want to think about whether or not he was good, or River...
"Well, thank you. You certainly gave her a gift. Is there anything I can do for you?" He really wasn't sure what he could and would do, but he supposed he more than owed it to the man for giving River a moment of clarity.