She’s excited to talk to you
Now, if you’re already on talking terms with this girl and you bump into her someplace, like a café or even in your office lobby, is she excited to talk to you? Here, ‘excited’ doesn’t mean a “Hi” with a smile, we’re talking a big smile, and a sparkle in her eyes that just light up her face. It’s involuntary, but when a girl’s happy to see you, it shows.
How to tell if she likes you? Well, if she really likes you, you may find that she’s standing a wee bit too close into your comfort zone, which is a great sign if you like her back. Read: 7 Body language tricks to make people like you at first sight