"Nice to meet you. I'd like us to be friends. Do you have time to meet up and chat with me??" That's about it.

I received a message...

Hmm...

Really!?

What to do...? I would like to meet them, though...

Eh...? Well, that's...

W-well, isn't that nice! Still, it's a little tacky to meet up like that out of the blue...