Does it mean she is interested if she smiles and waves to a guy she doesn't really know?

[Anonymous]

[horatiohornblower]

Sometimes it does. Sometimes it just means she’s just an overly excited person who sees someone she recognizes.

[Asker]

She giggles when I've spoken to her when all I asked was how are you

[horatiohornblower]

Some girls are just like that. Anyways, she at least has a positive leaning towards you. It's not like you're a close friend to her. Just ask her to dinner. You don't have much to lose.

[Asker]

She is the only waitress at this coffee shop that treats me like that. None of waitress wave and smile at me. When she waved and smiled at me she wasn't even serving me. So when she did that day she didn't have to. It happened when we locked eyes

[laraWM]

No, you can't be sure. It is possible but she may also be just nice without any further idea

[roro_hlbi]

In my culture yes, almost sure.

[Asker]

What is your culture?

[Slartybartfast]

Probably just toying with him for amusement.