Keywords
18-19 years, 20's, 20-25, 20-30, 20s, 25-30, 3, 60's, 60-65, 60-70, 60s, 65-69 years, 65-70, 70's, 70-75, 70-80, 70s, 75-80, adult, african, african american, african ethnicity, african-american, african-american ethnicity, afro american, afro-american, asian, asian ethnicity, black, caucasian, chatting, chinese ethnicity, class, classmate, classroom, color, color image, colour, communicating, communication, conversation, conversing, dialog, dialogue, discussing, educating, education, educator, elderly, explaining, face to face, far eastern, fellow, female, gal, gentleman, gesturing, guy, head & shoulders, head and shoulders, hearing, high school, high-school, highschool, hispanic, horizontal, human, human being, indoor, indoors, inside, instructing, knowledge, lady, latin american, latin american and hispanic ethnicity, latina, latino, learning, lecturer, lecturing, lesson, listener, listening, male, man, mixed race, mixed race person, motioning, multi-ethnic group, multicultural, multiculturalism, occupation, of african descent, old, oriental, over the shoulder view, people, person, photography, professor, pupil, retired, retirement, school, schoolmate, schoolroom, seated, senior, senior adult, senior citizen, senior men, seventies, seventy, signaling, sitting, sixties, sixty, speaking, speech, student, studying, talker, talking, teacher, teaching, three, three people, three quarter length, three-quarter length, together, togetherness, twenties, twenty, vietnamese ethnicity, western european, woman, women, writing, young adult, young men, young women, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, bld150129