To keep someone friendly or satisfied by complying with their wishes or preferences.
hold on
To keep; to store something for someone.
hold off
To delay (someone or something) temporarily; to keep at bay.
keep off the streets
To inspire or cause (someone) to avoid idleness, unemployment, poverty…
keep someone posted
To inform (someone) regularly of the latest developments.
sweet dreams
Said to someone before they fall asleep, wishing them a good sleep.
keep someone on ice
To keep someone uninformed and waiting for a response.