Funny ways to start an interaction between characters! Send some! -
"Hi. Are you here for the cat obsession support group, too?"
"Oh my gosh! Are you pregnant?"
"Don't go in there. I just farted."
"Be ready. At 1 o'clock you-know-who's doing you-know-what at you-know-where."
"OH MY GOD! HEY! IT'S BEEN FOREVER! *hugs* Wait... Oh. Sorry, you weren't who I thought you were..."
"Do you know when the Supreme Leader is supposed to get here?"
"Have you prepared yourself for the zombie apocalypse?"
"Do you know what gets blood off upholstery?"
"CONGRATULATIONS! You're the 53rd person to avoid making eye contact with me today! That means you get a free invasion-of-personal-space hug!"
"Um... You've got some toilet paper on the bottom of your shoe. I just thought you should know."
"Hypothetically... How would you want your stalker to introduce themselves to you?"
"I think that hot dog isn't using the right bicycle, if you know what I mean *wink, wink*"