There are two ways to go about it. You can take a compass and draw a perfect circle and make two perfect eyes as neat as can be. Or you can do it freehand and have some fun with it. Like I did. Give it character.
The catch phrase for the day is 'Do an act of kindness. Help one person smile.'
I made a circle with a smile for a mouth on yellow paper, because it was sunshiny and bright.