to establish the mood or style for something
何かのムードやスタイルを確立する (nanika no mūdo ya sutairu o kakuritsu suru)
"The manager's speech set the tone for the meeting."
"マネージャーのスピーチは会議の雰囲気を作った。" (manējā no supīchi wa kaigi no fun'iki o tsukutta)
to adjust to new conditions or circumstances
a polite way to say thank you warmly
to tell an obvious and bold lie
to start something that causes many unexpected problems
a friend you have known for a long time
when something is difficult to learn, usually quickly
