to establish the mood or style for something
установить настроение или стиль для чего-то (ustanovit' nastroenie ili stil' dlya chego-to)
"The manager's speech set the tone for the meeting."
"Речь менеджера задала тон для встречи." (rech' menedzhera set zhe ton dlya vstrechi)
showing strong jealousy
a sharp increase in growth after a period of slow progress
when the situation becomes very difficult or challenging
to act confidently until you actually feel confident
to be very confident and not shy at all
to fail to keep a promise
