I have to admit. I'm not a very good salsa dancer. I took some classes a while ago and then went to a salsa event recently and found that compared to these enthusiastic dancers I was poorly lacking in skills. However, people are accommodating and definitely willing to work with you.
Socializing is easy. People are paired and almost everyone is willing to accommodate at least one dance. Guys can ask Ladies and Ladies can ask the Guys. It won't take long and you will meet other people who come on a regular basis and find a main partner.
You can also burn a lot of calories that can be as much as 300 to 500 in an hour depending on how enthusiastic you are. I probably only burned about 200 but this is because I'm still learning. Those that come on a regular basis are in great shape.
Look around of San Diego Salsa events.