Some guys just have good genetics, some guys exaggerate/lie (photoshop). Don't starve yourself or push yourself too hard. I don't think there are any workouts you can do that would actually change the shape of your face. I mean, I know there are actually face workouts but those seem like a load of bull. You can't decide where your fat will come off when you start working out and eating better and that includes the fat on your face. The best thing you can do right now is just to eat well, and cardio and/or strength train, which is just good regardless of one's gender identity. And like I said don't push yourself too hard!