I feel like I have a good personality one-on-one, for what it's worth. But I have been self-employed as a programmer for the past 10 years and I often go 23 hours a day without any social interaction. When I'm at the climbing gym or crossfit or whatever, there's always the loud goofy guys that everyone is naturally drawn to. While I know I could never be like that, I would at least like to improve enough to get a joke once in a while. Right now I just stay mostly silent for fear of embarrassing myself.