Sulu noticed the glance and did what any kid would do in his position; he nudged the other with his elbow and grinned at him. "Don't worry, I'm not gonna disappear on you. I sure as hell don't want to lose you or anything." That was the last thing he wanted, anyway. He wondered if it would help if he put his arm over Ianto's shoulder again, to make sure that neither of them would wander off - but he didn't want to do anything too weird.

"Uh, anyway - if you see somewhere you wanna check out, just tell me. You're the tourist, after all."