Businesspeople listening to a presentation

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20s 30s 40s 50s 631- adult African-American ethnicity alert alertness American attention attentive auditorium awareness black blazer blue blurred brown brunette business businessman business meeting business people businesswoman candid Caucasian ethnicity close-up clothing communication conference center contemporary contemporary style convention center Convention Hall corporate dark hair day detail different diversity education emotion employed empty space enjoying ethnic Ethnic Diversity expressive facial expression female grey grey hair grin group group of people half length Hall happy Hispanic Hispanic (male) holding in a row indoors inside interracial jacket Latin Latin American learning lecture hall line listening looking Lyceum male male human man mature adult mature men meeting mid adult model release multi-ethnic North America note notebook observe occupation open area outerwear outfit out of focus pen people person photography presentation professional property release room row seeing selective focus side by side Silver Hair sitting sports jacket suit taking notes team teammate teamwork toothy smile upper body wearing white white collar woman working young young adult