These are the only signs i've got for now, could she be interested?

Just about everytime me and my crush see each other at work, we basically give a closed smile to each other, fake or not, doesn't matter. Sometimes ill already catch her looking at me smiling. Sometimes she'll add a quick flash of the eyebrows.

This has happened multiple times over the last few months, and little to no words have been spoken, as were both abit shy, her more so. We rarely see eachother because we work in different areas and never really have a chance to chat. But we have exchanged words in the past in good interactions (once asked her where something went and she just giggled just before someone else answered)

Are these good signs?

These are the only signs i've got for now, could she be interested?
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