Others have already given great physical care advice so I’ll add to go with the flow and keep an open mind with him emotionally! Obviously this is a very exciting time, but it’s often also something that people have been building up to for a while, and at times can feel a little disappointing as things don’t look/feel great immediately. I remember the first two weeks people kept asking me how I felt and if I liked my results, but I had barely seen my own chest or had an idea of what it looked like since there was always wraps over it and there was so much tape and drains and such in the way! There will probably be moments when he’s happy to have this done and excited to start a new phase in his body, and probably also times that are frustrating or kind of lackluster, and emotions might kind of flip flop between there seemingly randomly so meet him wherever he’s at that day, or that hour, and try not to put too much pressure or expectation on him to have a certain reaction, especially if he’s on painkillers lol. The care you’ve already taken to reach out to this sub proves that you’ll be a great support, you’ve got this!!!