In myself, I like the fact that I am honest and hard working. However at times I also dislike being honest as it makes me come off as blunt and sometimes rude by accident. I'm the type of person that if I don't like something... I say so lol.
As for others, I like people who are able to laugh at themselves when things go wrong. Laughter does wonder to improve moods. What I dislike is arrogance with no grounds, I absolutely can't stand snobby people.