If I can’t get out of going to a social event (forget parties), this is my next best option.

I’ve done it on dates also.
I hit on a girl in one of my classes in college because she was kind of cute and noticeably large casaba’s. To this day, it was the most boring date of my life. I thought she didn’t like me, but I found out she was just uninteresting. We went to dinner where I thought we could at least talk about the class we just finished.
She appeared in the school magazine 40 years later doing turtle research and guess what? She never got married. Others must have found out what I did.
I didn’t take her for being a switch hitter, so she just didn’t try. I can’t even call her an introvert as I saw her talk in class for a whole semester.
I didn’t have a hard time carrying on back then as those were my drinking years. I tried to keep it going and had other plans (dancing I believe) later that night but took her home. It was going nowhere and I was tired of trying. I dated a lot and was in my prime so a lot of others at least did their part in trying to keep it going.
After going home, I went out with my friends to a bar later to brag that I got out of one of the worst dates of my life.
Now, I don’t drink anymore and I get out of banal socializing as often as I can before it happens. I like this method best.
By chance I have to go, I know where the bathroom is and play with the pets.
Still, leaving is usually my favorite part of going to these.