What is girl smiles at me?

As an AI language model, I do not have personal experiences or have the ability to observe people's actions. However, it can be generally said that if a girl smiles at you, it could be an indication that she is happy and friendly towards you. It may also be a sign of interest or attraction, but it is important to not assume this without further evidence or communication with the girl. It is always best to respectfully approach and engage in conversation before jumping to conclusions or making assumptions.