Some people have personality problems. For example, introverted people, when they are greeted by others, they say "oh" or "look at it" or "smile" at most. Some people don't like to communicate with strangers, some people don't like to communicate with ordinary friends too much, and some people are arrogant. When someone greets him, he will act as if he didn't see it to realize his sense of existence, He will pretend to have just heard it when others call him more, so this is not necessarily your problem, and you don't need to pay too much attention to it.
Say hello politely. More than three times, the other person is still the same face, you can stop greeting this person. But don't take your attitude too far. Harmony is a very important factor when working together. It is good not to make enemies artificially.
He ignores you. It's also possible that he doesn't like people like you. He has a high profile. In this case, if you are the leader, then say hello. Generally speaking, the leaders who have little relationship with you will ignore the general colleagues. Everything is mutual. You say hello to him, but he doesn't reply, which makes you uncomfortable. On the surface, he deliberately doesn't say hello, but in fact, he should be ashamed of you. You are better than him in quality.
