Don’t take things personally.
Everyone has underlying issues that you can't see on the surface.
The person in the hallway that didn't speak as they passed by .. might have been thinking about the fight they had with their spouse, or the big deadline looming, or the bad news from the doctor.
The barista who is usually friendly but didn't engage in your usual banter this morning? She may have been thinking about her final exams or wondering how to pay to repair her car.
Don't make baseless conclusions based on a tiny amount of information that you have of others.
Assuming someone is rude to you or suddenly doesn't like you isn't helpful to your mindset or theirs. Say a prayer or ask the universe to help them out of whatever situation is burdening them. That will make you feel better and help them.
“Don't take anything personally.
Nothing others do is because of you.
What others say and do is a projection of their own reality, their own dream.
When you are immune to the opinions and actions of others,
you won't be the victim of needless suffering”
― Don Miguel Ruiz