Likeability is not the ability to make people laugh or take centre stage all the time. It is about considerate behaviour and keeping promises that make people feel comfortable around you. You win them over by fuelling their belief that you are a trustworthy person who they can count on to do the right thing.
Constantly trying to avoid being disliked can take its toll on one's mental health. Indeed, most of the people I have seen in therapy with such an issue were more harmed by the worry and anxiety caused by the possibility of being disliked than by actual instances of rejection or negative evaluation.
While past experience teaches people the importance of things like trustworthiness and loyalty in relationships, society's most popular people tend to possess more superficial attributes. So, which qualities are most important for likeability?