Depends if your doing it on purpose. Some people just act flirty without knowing or trying or the other person can read your signals the wrong way :)

I guess everyone thought about it ^^if we are being honest !
But it's what makes us human, we make mistakes ! But after that we (hopefully) evolve and become a better self :)

As the old fashion way ;) buy them a drink and go talk to her ;) use your body languages to see how she likes it ^^

Depends if your doing it on purpose. Some people just act flirty without knowing or trying or the other person can read your signals the wrong way :)