This icon is a part of a collection of Szczęśliwy flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
There is a circle with medium bluntness of a line. There is a curved line in the bottom showing the mouth. There are two dots above the curved line showing the eyes. Both the line and dots are centered in the circle.