Listening to Charlie with that intensity that he tended to turn towards people when they were speaking to him, Theo looked around as though a private place to sit would materialise, conjured by need alone. He looked like he was going to apologise for not being able to provide that for Charlie and then he flinched away when the wand was brought out without really realising he was doing so. He was a little startled when Charlie smacked the prosthetic but he knew that Charlie knew what he was doing. He watched with concern as Charlie tested his footing, not looking as though he was ready to catch the man again should he fall but ready to nonetheless. He was surprised that Charlie wanted to go to a club to look at his leg, but he was being given a name before he could ask.
"Oh, Theodore." he responded, shaking Charlie's hand tentatively. "No, not at all." he said a little unsure as to how to respond to that. "If I didn't know any better I'd suspect the cobbles were Dark Magic." he said, meaning it lightly but then rethinking. He hadn't given his surname because it made his skin crawl to even hear it, nevermind say it, but he still wasn't that under the radar as being related to Death Eaters and he was worried he'd be taken in the wrong way, retreating into himself a little again. "Are you sure you wanted to go to a club? I could try and find somewhere a little closer for you to sort that out?" He offered gingerly, not wanting to offend but not wanting Charlie to be in pain either.