a man wearing a microphone gestures and speaks about big choices
a man is standing and teaching a class
this man is giving a presentation of hacking specifically deep learning for social good
a man in white shirt is talking on the stage
the man in white shirt is explaining something on the stage
a man wearing a white shirt speaking on stage to a group of people
a man is standing and taking a class to the students
in a lecture hall a gentleman with an ear microphone is giving a speech
a man standing in from of audience and talking in from of them
a man in collared shirt stands in front of audience in large blue room
a male leads a class while wearing a white shirt
a man in a pink checkered shirt standing in front of a blue wall
a man in a white shirt standing in front of a large blue wall
a male lecturer describes the usefullness of an algorith to a small audience
a smart young man in check  dress  is talking about something very fluently
a man in white shirt is explaining about something in stage
guy in white shirt talking to the people in the room
a man in a white shirt is teaching in a blue room with white columns
a person is speaking about something to viewers
a guy in a pink shirt is talking to an audience