Kiss them back.Pretend you are getting a phone call.Give them a long lecture on how you were just being friendly.Wanna come up for coffee?
From FriendsVia googleCaptain Kirk
From Star TrekVia googleMarshall
From How I Met Your MotherVia googleTopanga
From Boy Meets WorldVia google
Have brunch.Tell them your great aunt once removed is in town and you have to see them.Give them your number and tell them to call you.Ignore them awkwardly at work.
Finally introduce them to your family.Pretend not to know them.Instantly friendzone them.Give them a frencher.
Lick everyone's cupcakes.Kiss someone and run away.Study hard.Hide your pokemon cards.