Things you do that annoy other people

[JrDude]

When I was younger I would say, "That's nice" all the time. Annoyed the intercourse  out of my friends.

I do this sometimes.
What really seems to bother people is when they tell me some random piece of info, and I say "K." It doesn't sound bothersome, but if you had several real conversations with me, you'd probably get it.

I tap my fingers on stuff a lot.

This too, though sometimes I use my knuckles to drum on the desk.
I also tap my feet, but no one seems to be bothered by either (except during a rally, or in an area where they feel the shaking of my leg, then they say "stop it")

[Sgt.Chilly]

whistle.

whistling is an instrument of the devil.

[DocEtte_2020]

whistle.

whistling is an instrument of the devil.

I intentionly start fight between Friends and/or Family just for entertainment.
I also annoy people in fighting games like SSBB by being either super cheap or gettin a Kill above and then just avoid fighting the whole rest of the match it especialy annoys my Friend Chilly who Complains Constantly.