How do you play computer games without your parents knowing?

You could try playing them when they are not at home or when they are sleeping and just un-install them before they wake up or come back home. This would probably be risky because if you got caught you would be in trouble and loose your parents trust.

Though some laptops and PCs have special features that hides games in he corner of your screen and only appear when you put your cursor on it.

I'd recommend, if u don't need to download it, get a couple of internets going and click on a different intrnet wen dey come. idk really.