Free images results:

Pensive pictures, stock photos and images


Three Kids Stock Image
Author: Kk5hy
Sad Royalty Free Stock Photos
Author: Bg_knight
Upset  Stock Image
Author: Dmccale
Alcoholic Stock Image
Author: Ctacik

Also, here are some commercial RF-licensed images that match your search criteria:  
Pensive man Royalty Free Stock Photos
Author: Dudau

Explore more commercial options: More Pensive Stock Illustrations & Vectors | More Pensive Stock Video Footage