I'm not sure how often this happens in older settings, but college dudes face this immaturity every time. To whomever this helps:

When you're trying to game a girl and a few acquaintances pop up and throw remarks like, "Oooo" and start making sexual gestures it's easy to lose the whole flow because of them. To fix it, just acknowledge them. Say something like, "Yeah, she's cute huh?" and look at her. She'll like it. It kind of turns the whole thing on the guys, it's awesome!

If she likes you it's easy to just laugh it off and this isn't even that big of a deal but I've been a long time reader and I wanted to say something and contribute. It works well not because it gets rid of the awkwardness - that could be dealt with just a little smile anyway - but because it actually HELPS the game.

I kinda like those remarks now, it's like work done by them to help get your game ahead.