What's behind that being who looks so happy wanting to hide his pain, your smile seems real, but you're just a broken person with a smile trying to hide your hell.
I could say that all the time I wear a mask that contains a huge smile, to cover those nights of sadness, those insurmountable cries and desperate cries, but no one notices because they see you smile and that's fine for them.
The false smiles are easy to notice for someone who has gone through the same, you are with a group of people laughing, but inside you are crying in silence. What's behind a fake smile? A broken soul.