Why does Ponyboy tell us that he spoke with fake cheerfulness?

Ponyboy's use of fake cheerfulness reflects his inner turmoil and the pressure he feels to maintain a brave front amidst the challenges he faces. It highlights his struggle to cope with the violence and loss in his life, revealing that he often masks his true emotions to protect himself and others. This facade serves as a coping mechanism, illustrating the complexity of his character and the harsh realities of his environment.