I don't think I lack social skills in particular, I'm easy to get along with and in all my jobs I (think) I made my bosses happy. What I lack is the selling par

I don't think I lack social skills in particular, I'm easy to get along with and in all my jobs I (think) I made my bosses happy. What I lack is the selling part, the "explain what were your challenges in your last project and how did you solve them".