Tony | Superman
Okay he was cute, Tony just went ahead and made a mental note of it to get it out of the way, the fact had been established and they were moving on from it. He didn't have to worry about it anymore. He didn't seem to have a name either though by the sounds of it, or he just wasn't really interested in talking? Tony needed to chill about it, people were not always out there doing the things that his wild mind liked to think they were.
So rather than let himself spiral and overthink things he took a drink to you know just stop for a second and then smiled, "Nice to meet you too," He paused because you know maybe this would be the place where the other guy might offer his name or maybe Tony would have to ask, which he could of course but it had been a while since he'd had to really introduce himself, even here most people kind of knew him, or a version of himself so it all kind of played out in a way that meant he didn't have to do this whole my name is sort of thing.
"I don't think I've seen you around much," He admitted and sure he'd spent a lot of his time lately either staring at the Steves or trying to make Jan's wish for an actual internet come true, which was still a hell of a long way out but he'd managed to get a sort of framework from the convention, but even with Tony's genius level intellect it was going to take ages to fill it out enough to turn it into the sort of thing that Jan was missing.
"What's your name?" That's it, go for the direct approach.