Can you just go with the flow? Your partner may let you know what he likes in the process.

Since this is all new to you, can you have a non-sexual conversation about how much he means to you and that you, too, are very interested in making him happy? Maybe it'll lead you to a conversation about sex.

My advice would be to slow down. Take it day by day. You may learn what he likes just by being with him. Maybe what he likes is what he'll perform on you.. so make sure you tell him what you enjoy, too.

As far as your post-op body.. it's a process. There's a lot of new beginnings here for you and as nerve-wracking as it can be, it's also a very exciting time for you.. so congratulations. You'll learn to love your new body and be comfortable with it in time. Try not to over think things and find ways to help you relax.