A "smiley" is a small symbol or drawing that represents a smiling face. It is commonly used in messages and online communication to show happiness or laughter. Full definition
The use of smiley faces and pictures depicts ideas to aid the writer in creating sentences or questions. (tes.com)
Via the Legal Writing Prof Blog I see that the use of smiley faces and other emoticons in professional writing is on the rise. (legalblogwatch.typepad.com)
This image released by A24 shows, from left, Armie Hammer, Brie Larson, Cillian Murphy, Sam Riley and Michael Smiley in a scene from «Free Fire.» (apnews.com)