When your neighbor has an antfarm so you proceed to cum on the ant farm providing the ants nutrients until your neighbor figures out it you and decided to do something about it, when you explain its for nutrients and you stop and clean it up for them. The premise is to keep doing it until they catch you
Neighbor 1: yo i seen you doing chology in my yard and i really want you to stop or ill call the police Neighbor 2: thats fine with me, don't call the cops i will never do it again and i'll clean it up for you
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"