This statement reflects a powerful sense of self-confidence and self-expression. It conveys that the person's choice of dressing up is not influenced by the attention or approval of others, particularly boys, but rather by their desire to feel good about themselves and admire their own reflection.
"I don't dress up for boys" emphasizes that the person's appearance is not driven by seeking validation or impressing others. Instead, they dress up to feel comfortable and confident in their own skin.
"I dress up to stare at my reflection as I walk by store windows" portrays a sense of pride and self-appreciation. It suggests that the act of dressing up is an empowering form of self-affirmation and self-love. The person finds joy in their own reflection and takes pride in their appearance, regardless of how others may perceive them.