1 person 30-35 30s Adults only Afraid Casual attire Casual clothing Caucasians Cautious Close up Concentrate Concentrating Contemplate Doubtful Exhausted Eye contact Fatigue Females Glasses Hands under chin Head and shoulders Head shots Individual One person Pensive People Person Photographs Pictures Portraits Sad Serious Sitting Sleepy Solo Stock photo Studio Thinking Thirties Tired Uncertain Unhappy Unsure Upset Vertical Weary Woman Women