r/Fitness does a weekly "Moronic Monday", a judgment-free thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. I thought this seemed like a useful thing to have here - after all, the concepts discussed on LessWrong are probably at least a little harder to grasp than those of weightlifting. Plus, I have a few stupid questions of my own, so it doesn't seem unreasonable that other people might as well.
This was a big realization for me personally:
If you are trying to get someone to like you, you should strive to maintain a friendly, positive interaction with that person in which he or she feels comfortable and happy on a moment-by-moment basis. You should not try to directly alter that person's opinion of you, in the sense that if you are operating on a principle of "I will show this person that I am smart, and he will like me", "I will show this person I am cool, and she will like me," or even "I will show this person that I am nice, and he will like me", you are pursuing a strategy that can be ineffective and possibly lead people to see you as self-centered. This might be what people say when they mean "be yourself" or "don't worry about what other people think of you".
Also, Succeed Socially is a good resource.
Another tool to achieve likeability is to consistently project positive emotions and create the perception that you are happy and enjoying the interaction. The quickest way to make someone like you is to create the perception that you like them because they make you happy - this is of course much easier if you genuinely do enjoy social interactions.
It is very good advice to care about other people.
I'd like to add that I think it is common for the insecure to do this strategy in the wrong... (read more)