If she sips from your straw is that an indication she's into you?

i was out at a bar and got vodka and OJ and the girl I liked sat real close to me and I was drinking from the straw of the cup then she used the straw after me...instead of drinking from the class...is that no big deal or that she wants to share my germs is that a hint?
If she sips from your straw is that an indication she's into you?
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