How To Lose My Man Boobs And Make My Chest Muscular?

I want so much to lose my man boobs and gain muscle in the chest, so please help…

Hello, I Am A Flat-chested Boy…how Can I Build Bigger Muscular **man Boob** Without The Use Of Medication,?

or surgery…Like pushups or something. I have a small chest and I want to have a bigger chest…man chest…what can I do to do this