Haha, I can definitely understand this feeling. It can be difficult to overcome! It doesn’t always “work”, and sometimes you will just stand there awkwardly. The good news is that nobody is going to care or remember. Seriously. You’re basically an NPC to people you don’t know. I’ve been to hundreds of parties in my life and have zero tangible memories of other people’s “awkward proximity”. Nobody cares about you as much as you do, which is slightly sad but majorly liberating.