Personally speaking, I like grey eyes. I think people with grey eyes are pretty mysterious and charming. By the way, grey eyes are rare, things valued because of their rarity.
If you are a person with grey eyes, you should be proud of yourself, however, you have to undertake the fact that there still are people who dislike grey eyes.
I think grey eyes are pretty, thery are not ugly at all, they are quite special. Some colored lenses are grey colored, and a lot of people like wearing them. But in a whole, it will depends on your skin type and hair color, so I hope that you look pretty with grey eyes!