She smiles but never talks

this girls always smiles at me when we make eye contact but never talks to me. I have to walk over and talk to her and when she talks she speaks quietly in short polite sentences.

i have two theories:

1. she is attracted to me but too shy to start a conversation

2. she finds me weird but doesn't want to hurt my feelings

what do you honestly think?
She smiles but never talks
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