Add a letter to "smile" & you get this figure of speech
[DOC] [TLE] Grammar And Language Glossary - Businessballs [PAR] a- - the letter 'a' is prefix, with various meanings, seen in different stages of word 
..... and anything with a smile or even wearing a hat); and all those digital media 
icons ... for example 'You get out what you put in', equating to an aphorism, 
originally .... alternatively and more loosely called an expression or a figure of 
speech.