What kind of behavior would you call this?

This girl keeps giving me some kind of behaviour but I don't know what it is. She keeps doing things like saying " what are doing here?" When she can clearly see what I'm doing. She also says things like in a joking way " you're in the way". Or saying " I should have open the door harder as I was on the other side of the door". She has even nudged me when carrying a box to to her work area.

I just don't know if she is joking cause she has a poker face sometimes. Is this acting mean behaviour or something else? Please help it's really got me wondering and I don't know how to read the situation.

Updates
1 y
Best way to describe it would be she is pretending to act mean towards me. But really she doesn't seriously mean it.
What kind of behavior would you call this?
Post Opinion