Girls arching back, do girls do this to get guys attention?

This girl always arches her back around me sticking her behind out and towards me, she also always pulls her shorts up really tight when I'm around and struts past me facing her behind towards me and pulling her shorts tight against her butt. We often catch eye contact and smile to each other and then the other day she approached me and started a coversation. Is she attracted/interested in me?
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+1 y
if so what shall I do?
Girls arching back, do girls do this to get guys attention?
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