I don't lack confidence, but I sometimes waste so much time during a conversation thinking about a funny punch. I lack a good sense of humour. Not that I am boring, I talk smooth, I keep in mind basic principles like asking them about their lives, talking about myself less and asking them about themselves more but I just do not have the arsenal of funny jokes, replies and punches. I can not take a conversation to that point where they just want to keep talking and talking, where they start having fun and the conversation becomes enjoyable for them.