1 person 10-12 years old Adolescence Adolescent Adolescents Afraid Angry Annoyed Apprehensive Bashful Brown hair Brunette Caucasians Cautious Child photography Children only Concentrate Concentrating Concern Contemplate Dark haired Displeased Doubtful Eleven years old Exhausted Frowning Girls Grimace Hands under chin Head and shoulders Head shots High school age High school seniors Horizontal Individual Long hair Mad Middle school age One person Pensive People Person Portraits Preteen Puberty Pubescence Sad School age Serious Shyness Sleepy Solo Stock photo Studio Sulking Teenagers Ten years old Thinking Timid Tired Tween Twelve years old Uncertain Uncomfortable Uneasy Unhappy Unsure Upset Vulnerable Weary Worried Worry