What is the most annoying habit someone can have?

Gossip, non stop.

prying into the personal business of others, to it on a continuous basis, there were a number of people like that at the job where I retired.

Lying all the time.

Probably chewing loudly.... snoring like a hog with asthma.... being crude etc etc lol!

Smoking💀

Smoking or snapping gum.

I’m sorry to say this but smoking

When they say “do you know what I mean?” at the end of every sentence. Or “do you get me?”

Making too much noise eating, being fidgety, taking during movies, not covering mouth when coughing..

to breathe

Ignoring people

i had a girlfriend that smoked but i put a stop to it

mouth breathing

Disgusting eating habits like ramming food down fast and eating noisily.
Untidiness.

For women it's called breathing

crosseyed, not a habit but damn I hate it, should I look at the left or the right, and when I think I look at the right then the other move 😯

straightening themselves out in public.. eh!

like, dude, if it's that bad go home and jack the hell off in private already!

Smoking, or chewing with mouth open.

Picking there friggin nose. Omg. Lol

the woman who i thought was my soulmate clapped when the plane landed 🙄