I think there's a dichotomy of people here. I'm one of the ones that minds because it can disrupt my work. I realize that sometimes interruptions are necessary

I think there's a dichotomy of people here. I'm one of the ones that minds because it can disrupt my work. I realize that sometimes interruptions are necessary but I want it to be efficient. So get to the point already Then there are the people that don't mind the interruption and sense of suspense. A "hi" feels to me like someone has just come up and poked me, but is just staring at me waiting to respond. Over chat it feels even weirder because then it is as if I have said "yes, what do you want" and I get to stare at them for a minute or two while they compose a request they should have already had ready. Also keep in mind that while saying 'hi' is perfectly fine irl, there is a crucial bit of context missing. If I see a colleague deeply concentrating on his work with headphones on, I'll wait. If their body language indicates that they aren't focusing hard, then its probably fine to interrupt.