I do not enjoy it when you're at a restaurant in a moderate-sized group of people, and all they have are tiny tables that they've pushed together:
This is pretty typical when you have more than six people in your party. I find it unpleasant, though, because I can't stand to look at the person on the other side of the table for too long; they're too close, and it's uncomfortable. So, I always end up looking at a person to his or her left or right for most of the meal; they're usually at the most comfortable distance.
With somewhat larger tables, like the ones at the cafeterias at work, it isn't as bad, though someone diagonal from me is still a bit more comfortable to look at.