Ключевые слова: activist, altruism, asian, cardboard, care, charity, cheerful, community, donation, environment, environmentalist, group, group of people, happiness, help, holding, looking at camera, males, medical mask, men, nature, occupation, organization, outdoors, pandemic, placard, poster, protective, protective mask, protest, showing, sign, smiling, student, summer, support, team, teamwork, vietnamese, virus, volunteer, woman, women, young, young adult,