1 person 20s Adults only Angry Annoyed Bored Boredom Casual attire Casual clothing College age Concentrate Concentrating Concern Contemplate Curly hair Early 20's Exhausted Frowning Grimace Head and shoulders Head shots Hispanic Individual Mad Males Man Men One person Pensive People Person Photographs Pictures Portraits Sad Serious Sleepy Smirk Solo Stock photo Studio Sulking Thinking Tired Twenties Twenty years old Unhappy Upset Vulnerable Weary Worried Worry Young adults