Ah girls.. what a mystery. When I was at school there was this girl, my mates sisters friend, who one day just started hugging me. And I dated her so if she's touchy, that's a good sign. If she talks to you more than others do, that's another sign. If she rings you at 2 in the morning to 'talk' then god damn it... sorry just, erm. Anyway... you can never be certain but don't be afraid to talk to her about it, but god be subtle! If any of this helps then you're welcome. If you're scared of me then I'm sorry, lol.