I really dislike it when people say “You know?”
First of all, if I knew what you meant, I wouldn’t be listening.
Second, having heard you say this, I conclude that you are insecure and probably ignorant, so I cease listening.
Third, be thankful I just ignore you; my emotional inclination is a horrible discorporation for wasting my time and attention span on crap.
Sturgeon’s rule corollary: 1.0 of all people who say “You know?” are crap. Especially between the ears.