Will she call me?

I gave a girl my number today, and well let me give you a run down

In gym I was highly interested in her, We had a small chat, about push ups and sit ups, we chatted a little bit after that

2 hours later I went up to her, Asked her name, she gave me it..And I gave her my number and said "Call me anytime" and she said "Okay" So I went on with my day...My question is, do you guys think she will call? If She does what should I talk about with her/keep her int rested, I'm just worried I came on a little to friendly.

Later that day I heard from one of my friends that she was talking about how I was the first guy to ever give her my number.
Will she call me?
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