If you're going to flirt, then do it in a place where people aren't looking.
"Well don't say it like that. Right now this is a place to drink. Let's put it all aside."
"In the first place, I've been wanting to say it since before, from my room, flirting and more flirting. What, marriage? What is that, it's fine, but what is with that, even during the time when a person is feeling down... The sound was resounding all through the night, really... kya?!"