รอยยิ้ม
form one's features into a pleased, kind, or amused expression, typically with the corners of the mouth turned up and the front teeth exposed.
:
• She gave a warm smile.
เธอยิ้มอย่างอบอุ่น
• His face broke into a broad smile.
ใบหน้าของเขาแย้มยิ้มกว้าง