godan verb (-su), expression
cheer up; put back in a good mood
Used when someone is in a bad mood and you try to improve their mood, often by doing something nice or apologizing. The subject is the person doing the cheering up, not the person whose mood changes.
彼女の機嫌を直すために花を買った。
I bought flowers to cheer her up.
冗談を言
I tried to put my boss back in a good mood by telling a joke.