Keywords
20-24 years, 20s, 25-29 years, 40-44 years, 40s, adult, adults only, american, amplification, assist, assistance, assisting, bend, bending, bent, brown hair, caucasian, caucasian appearance, chatting, cheerful, classroom, clearing up, college, colour image, contemplate, contemplating, contemplation, contemplative, content, cooperation, desk, discuss, discussed, discussing, discussion, education, elucidation, ethnicity, european, excited, excitement, expertise, explaining, explanation, explicit, expression, facial expression, female, friends, friendship, front view, grace, gray hair, grey hair, guidance, guide, guiding, hand on chin, happiness, happy, help, helping, hold, holding, joy, learning, legs crossed at knee, long hair, looking away, looking up, male, males, man, mature, mature adult, mentation, note pad, pen, people, positivity, professor, satisfaction, sit, sitting, smile, smiling, speaking, students, studying, talk, talking, teaching, thinks, thought, thoughtful, thoughtfulness, together, togetherness, toothy smile, toothy smiling, university, university student, white, woman, wristwatch, writing, writing instruments, young, young adult, young man, young woman, youth, 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, gws221061