I think it is a question of personality

Maybe it is yoru nature. You do not have to be like everyone else. just be yourself. Some people are intravert do not like to chat that much. If you feel you need to do sth to improve this, just start chatting non-work related topics. Usually you just need to start a conversation by a few questions and the other party once engaged will keep talking and talking. that is my strategy. works very well. But you need to listen or pretend to listen.