Yes, this!

I think what guys don't realize is that it's actually a huge confidence-builder for the woman, and a sign of trustworthiness, if the guy waits for a signal. Even if she's interested, she still probably doesn't want to be approached at a moment when she's focused on something else. It doesn't feel good to be hit on when she's genuinely busy or her attention is elsewhere, no matter who's hitting on her.

So it's important to wait and watch for evidence she's interested in being approached. That connection is part of the dance.