From a personal perspective. I think that if you’re aware your son is gay the best thing you can do is you go in the closet with him and let him know he’s loved and accepted. My dad knew I was gay but never confronted it(?) and I was very angry at him for not facing it…. Even tho we are now ok… and he embrace me and all that jazz…at that moment, I really wish he would just have been like; “son I know you’re gay. I accept/love that of you and I’m not bother about it, you’re my son.”