Keep it to oneself

I just kept it to myself because I thought it would help him.

Pretty Little Liars S2E11

I can't imagine just holding all that information, keeping it to yourself.

Schitt's Creek S4E6

Yeah, well, keep it to yourself, or people'll say you're as crazy as Tesla.

Doctor Who S12E4

Ladies and gentlemen, friends and loved ones of Seeley Booth and Temperance Brennan, if anyone here has any reasons why these two shouldn't be married, keep it to yourself or get out because this is going to happen.

Bones S9E6

Just keep it to yourself.

Breaking Bad S4E10

And I know it must be horrible to be looking at whatever you're looking at, but can't you keep it to yourself?

Mad Men S3E4

- I kept it to myself.

Prison Break S1E16

♪ Keep it to yourself It's my life ♪♪

Glee S5E6