Shade pretty much nailed it: when served lemons......
Here are a few practical things I find useful.
First is practice routines. Consider that if your normal round with your group is four hours, you actually want as much time to lapse between shots as possible. If your average is 2.5 minutes between shots, you will be taking about 95 strokes. 3 minutes will produce an 80,and 3.5 will will be par. Dedicate some of your practice to waiting one full minute between shots, then increase the interval to two minutes. Another very good way to practice is to find an open field where you can hit a wedge or sand wedge, pick a target, hit, and walk to the ball. Pick another target, hit, etc...practice with only one ball. Both of these methods replicate the pace of play so there is less disconnect between practice and play than if you just go to the range and pound balls. It also helps overcome the anxiety associated with having to wait excessively between shots on the course.
If a course is a little bit backed up, so much so that there is a minute or two wait on every tee, I try to convince my group to slow our play pace down so we don't have to wait so much. Very few are willing to do that however, prefering instead to play each hole quickly, then waiting on the tee, so I end up slowing my pace as much as possible in order to match the pace of the course. I would rather keep moving slowly than fall into the accordian syndrone of hurrying up only to wait.
Regarding being a social outcast if play is delayed, that should not be a factor. If a person's prefered style is to be absorbed in the game and not socialize, there should be nothing wrong with finding a spot to make practice swings and not join in about last night's football games.
Ultimately.....make lemonade. Everyone in your group is playing the same course and the same conditions. The one who is agitated the least, or actually finds something to like about whatever the conditions are, is usually the winner.