For me, it is that it usually isn't important what you say as opposed to how.
Most Helpful Guys
1. Just because a girl flirts, it don't mean she likes you.
2. Girls in relationships can be attracted to you easily.
3. Girls can be crazy as fuck.
It doesn't always need a pickup line to start a convo
Most Helpful Girls
That apparently there's an "art" to it and that's lame. And people that are flirty are going to always be that way.
That everyone reacts differently and how to flirt back without feeling awkward about it.