Because I honestly can’t. I can barely talk with the very few people I know. Is just so out of my range. That’s why I don’t have friends or a partner and I don’t see that changing.
EDIT: no, responding comments here or asking this question ISN’T having a conversation for me. So I don’t feel this as “progress”.
If I absolutely have to, yes. If I don’t need to, I avoid it and prefer to mind my own business. For example, I sometimes attend some happy hour events for people in my field of work. Obviously you have to have some small talk, but I usually only engage if someone strikes a conversation. If not, then I’m happy just eating and drinking while watching whatever is on the bar tv. If I’m attending a show, concert, or game, I don’t strike a conversation with strangers at all.