Also, I'll second the recommend for in-character speech in instances. A lot of people might think to shy away from that, but you never know who'll take the bait.

My warlock met her eventual husband in a Ramps pug of all places, many moons ago.

Seconding this. Roleplayers are wary of anything that looks like an attempt to put a drama spotlight on a character, because almost all of us have, at one time, stopped to help a damsel or dude in distress and realized it was a cleverly-designed ploy to trap someone--anyone--into listening to their tragic backstory and dispensing sympathy on cue.

I did have one very good RP experience that came from a "collapses in the streets" moment, though. My young human mage, my friend's quirky draenei shaman, and another draenei we'd been RPing with picked up a human woman that had fallen over in the tram depot and carried her to a bench. She said she was having trouble with her legs and needed to find an engineer. My mage and the shaman stayed with her while the other draenei "ran to find a friend" (got on her engineer alt), and he came out to fix the problem...which was that the woman had mechanical prosthetic legs and they were malfunctioning. As weird as it sounds, it was one of the more fun RP experiences I've had, mostly because it played out like an actual group of strangers helping someone legitimately in need at the train station, and not like someone's excuse to be the center of attention.