How can I become a better conversationalist?

Focus on the positives!Go for the positive topics. Which means rather than talk about past grievances, opt for a discussion of future goals. Rather than talk about the coffee that spilled on your table this morning, talk about that movie you are looking forward to watch later in the evening. It’s okay to talk about “negative” topics (read: topics that trigger negative emotions) once in a while, but only when you feel it is okay with the other party and when it has a specific purpose (e.g., to get to know the other person better or to bond with the person).