If no,what's the reason?
It most definitely can, it's why a lot of asian girls seemingly have bigger eyes with makeup on, and smaller eyes when it is off. Other reasons could be colored contacts, some girls wear certain ones with certain colors that make your eyes pop out more and make it seem bigger. But other than that, the girl just has big eyes.
Makeup can change the appearance of eyes. Some girls even where white eyeliner to look more awake/wide eyed. But not all girls wear makeup so some girls might just have large eyes.
No, Just outlines it. i mean i guess it can cause your eyes to look slightly bigger. but for the most part it just outlines and makes ur eyes a focal point on ur face.
Not all of the time it makes there eyes stand out more better than it usual does