It means that your eyes are wandering, and suddenly your eyes meet up with another persons.
that they may have a bad life in grown-up stage
Get a grip
It means that their eyes have this piercing glare or commanding glare. Sort of the,'Not putting up with that!' look.
he probably likes you
It's dark circles around your eyes or dark make up made to look like a raccoon
I am not sure what you mean by "spread your eyes." If you mean to move location the answer is no.
For your eyes
he has always liked you.
he probably thinks your cute
it depends scratching will damage them standing in front of light can it depends on what you mean
He probably does like you :).