30s

adult

audience

auditorium

background

blur

business

businesswoman

communication

conference

congress

convention

cooperation

corporate

crowd

discussion

education

educator

entrepreneurship

event

explaining

faculty

female

group

hall

learn

lecture

lecturer

listeners

meeting

microphone

modern

office

people

person

presentation

professional

public

seminar

speaker

speaking

speech

summit

talk

teacher

training

university

woman

workshop