How to understand her behaviour? Girls advice?

There is a new girl in our office this week.

I have big job in there. She's young really good looking

This week she basically avoided bumping into me purposely all week there are many other coworkers around

she chatted to everyone else there even saying hello to coworkers I'm helping and not me

I caught her staring at me each day a lot glancing when working with other coworkers

But she always trys to stare at me when we're alone from far away So when alone I stareed back and she looked away started twirling her hair and sucking her two lips together

Does she like me hate me

Really confused but thinking about her?

How to understand her behaviour? Girls advice?
Post Opinion