Today I met up with one of my friends and we had a laugh and stuff and I don't know what she said but I did like a ''half smile'' (whatever that means) sort of thing according to her. So she said ''you had a nice little half a smile there, but it's OK, you were smiling through your eyes anyway''. What on earth does that mean?
Well, you got the more romantic answers so far. I'm about to take the romance away lol
The muscles around yours eyes flex when you genuinely smile. When you force/fake a smile, your eyes don't change. If you were "smiling through your eyes" it means she could literally see the smile reach up to your eyes.