Silent during sex

My boyfriend and I have a great sex life but he’s very quiet, it doesn’t bother me but sometimes he doesn’t say anything and he doesn’t realize that he’s like not looking at me either and so that bothers me sometimes. I want to figure out a way to kind of to get him to open up more maybe talk dirty to me or even morning would be better than nothing, him staying silent just makes me feel like he doesn’t enjoy himself as much as he says he does .

Any advice??