Will you three please shut up!? Lady Olivia is trying to sleep, I swear that Malvolio told you to leave....
Who is Malvolio to say we must leave i am Olivia's Uncle after all.
Yes, i say we play a trick on him to put him in his place.
Ah, yes and I've the perfect plan, I write a letter addressed to Malvolio pretending to be Lady Olivia saying that she's in love with him and if he loves her back he will wear yellow stockings and walk around like he owns the place.
But how do you know it will work?
Yes, sounds wonderful!
Because, Olivia HATES the colour yellow and Malvolio is so full of himself he would never think of it as a trick. As I said, it's PERFECT!