Smiley Faces

When you do a smiley face, it sometimes has a little label that appears when you hover over it. Some of them say ::slightly smiling face:: or something similar

More often than not, the correspondent has not chosen an emoji based on that option. 
They may just have typed it,

: - )
 like that, or similar. I have questioned such smiley faces in the past.

All I'm saying is, there's often no need for people to question why other people are just SLIGHTLY smiling.