I want to get into approaching, specifically daygame, however I'm constantly hindered by approach anxiety. Namely that split second timeframe I seem to have to talk to that cute girl passing me by that I locked eyes with. I have extreme trouble just whirling around and saying "Hey". Like all I would get out would be a jumble of words.

I also instantly assess situations like "what would all these other people think of me? I bet they would shun this."

How can I make that decision? How can I just man up and decide to go after this girl? How can I learn to assess the situation properly in a split second timeframe without worrying about consequences?