male speaker speaking in a business seminar

20s 30s 40s adult adviser associate attentive black board business businessman businesswoman casual caucasian chair chart colleagues company concentration conference consultant corporate day entrepreneur entrepreneurship event executive expertise explaining explication female flip formals front group guidance half indoors leadership length lifestyle listening lobby male man mature medium meeting microphone mid mixedrace occupation of office people presentation profession professional seminar sitting skill smart speaker speaking strategy suit summit team teamwork together togetherness training view whiteboard woman workplace young