Search Results: calling after first date

It's not the typical situation... I met this girl two years ago where we really hit it off in a class we had together. Problem at the time was that she had a boyfriend. We talked every day in class and I walked her home every day too. But she wouldn't give me her number then. I think because she had a bf... so at the end of the semester I gave her my number but she never called :/

Fast forward two years and I just saw her for the first time. We saw each other completely randomly and we talked for a bit. Smiled, laughed, and just reminded me of her back then. This time I said how we should hang out soon and she said yes definitely. She said how she has my number but said I should just take hers too.

When should I call her? I want to call and ask her to go out to this place with me. It's a casual date idea that doesn't have to be a "date", but it's just a fun place to go. Anyway... I got her number Thursday night. When would be the best day to call?

I don't want to call too early to seem eager especially since she never called me in the two years she had my number... but if I wait too long it'll look like I'm playing a game. I put Friday(today) as an option, even though I won't be calling her today because it;s getting late...but still vote Friday if you think I should have called today.

Thanks all :)