adult

advice

advising

audience

business

businessman

businesswoman

caucasian

coaching

conference

congress

convention

corporate

discussing

discussion

education

educator

event

expertise

explaining

formal

group

learn

lecture

lecturer

listener

listening

male

manager

meeting

men

office

people

person

presentation

professional

public

seminar

session

speaker

speech

talk

teaching

unrecognizable

women

workshop