Girl checking for reaction?

In general I have always noticed this girl staring at me. She does it a lot when she is talking to other dudes. I will be looking somewhere else and will turn to face her and she will already looking be at me, but in a way where it seems like she lost her train of thought and was zoning out. All this while the dude is talking. I wonder if she is actually "admiring me" or if she is only trying to make me jealous. Today I was standing across the entire room from her and a guy walked past her and wanted to give her a fist bump. As soon as she fist bumped him her eyes darted to me. Im sure she was checking to see if I saw the interaction. Which tells me that on some level she cares about my opinion of her. Just wanted to get my thoughts down with this post and curious if any else has experinced stuff like this?

Girl checking for reaction?
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