hmm..
I like ur name, It says it all.
Well, first off.. cards are scarry. If I was a guy, and a girl gave me a card, i'd never call her ever!!!
So.. don't send the card..
Second, if he doesn't have a girlfriend by the end of college.. then i'm sure he's be more than happy to entertain a request of company.
Lastly, relationships don't start with a card, or a "call me".
You have to go up to him, ask him some questions casually like:
"Hey, you look so familiar, have I seen you in (Class)"
"You look down, what's wrong? Spending the Summer alone?"
Something along those lines. No offence, but the London is a pretty boring place, and I always give out the same advice to whoever is thinking of going... "Don't Go"
And I only say that if you're going as a guy. Because even if women are single or not.. they are in no mood to talk to a guy. It's like they don't want to date.
So.. i'm sure since you're both there, you both know this. And he'd be more than flattered to get your number or give you his so that the two of you can meet up sometime..
HELPFUL HINT: if he brings people along with him the first time, you have the upper hand, and getting together depends up to you, because chances are he'll be too shy to ask you.. If you end up going with him alone, then wait for him to make the first move, it's his call, but that doesn't mean you shouldn't play your game either.. just wait for his final move..
If you can't stop the Wind, then you can't stop the Storm.