I Am Annoyed By Negative People

It's even worse when it's the people you work with! There's no escaping them. The ladies in the office I work in frequently give me attitude for reasons I'm unsure of. I always enter the office with a positive upbeat attitude, greeting everyone on my way to my desk, and usually receive the opposite from them! Hahahah.
I don't take things like this personally, as I know I've been the friendliest I could be, so if they still give me attitude, it has nothing to do with me. Obviously a personal problem.
I just try to focus on my work and go home 😊