Similar to
micro aggressions, microflirting is
flirting on a smaller, much subtler scale.
Maybe she's married, he's engaged, or they're in the same friend group, but they occaisonally make comments or gestures that suggest that interest.
Girl: "Hey, I really like your hair today. I
love the conservative, clean-cut style."
Guy: "Thanks!"
Guy's friend later: "Bro, she has totally been Microflirting with you, man. That's like the 3rd time she's complemented your hair."
(
Girl and guy hug as they part)
Girl's friend: "Gurl, did you see how he gave you strong eye contact and lingered for half a second on your lower back?That was totally a Microflirt."