Is she too shy to talk to me??

I met this girl and we hung out three times. One time, she was really touchy (slept on my shoulder, lap, played with my hair, tickle) but one time she was more conservative because her friend was with her. I think she knows I like her (I didn't officially tell her yet), But I just texted her a few times to say hi. Girls, would you sometimes be too shy to text/call a guy? I don't wanna look too needy by initiating the conversation all the time. What do you think?
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If you have a crush on a guy and if he doesn't call you for 2 weeks, would you at least try to call him? Or wait/hope he will call soon?

Is she too shy to talk to me??
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