How does a Asian girl get her eyes normal?

There is not one definition of normal. Everyone is different. That is what makes people beautiful and unique. Asian eyes ARE normal on Asian girls. Everybody is just right as they were created.

Asian eyes are as beautiful as European/non-slanted eyes and anyone who tells you different is immature and beyond your consideration.

However, if you really dislike the shape of your eyes you could invest on an Asian Blepharoplasty, which is a surgery in which the skin of the eyes is reshaped to create an eyelid crease.

But don't let others' opinions influence what you do. You are beautiful just the way you are! How would people feel if Caucasian girls had their epicanthal folds enhanced?