Forehead: หน้าผาก
♀ Girls: A round forehead is considered pretty—at least, prettier than a flat forehead or one with a pronounced browbone. Some girls, though I don’t know exactly how many, get fillers and fat injected into their foreheads.
♂ Guys: For guys, the same thing applies except to a much lesser extent. Since they do like a little manliness in their guys, some flatness and/or a mildly protruding brow bone is acceptable, especially if he is handsome overall—take Lee Min Ho, for example.