If they are surprised, bug their eyes out.
Angling them down creates anger; curving them up shows worry. Cartooning for the Beginner
Practice "sketching light." Draw dozens of circles and squares without pressing hard. The Power of Exaggeration Realism is the enemy of cartooning. If they are surprised, bug their eyes out
A set of 2B pencils and a fine-liner pen (like a Micron) for "inking." If they are surprised