Machiavellianism
When you wait a bit before answering just so it looks like you're not too excited or desperate.
Your crush texts you, 'Hey, wanna hang out?' and you wait 45 minutes before replying.
Your friend asks if you want to go to the party, and you wait until the next day to say 'Sure.'
Your mom says you can have a treat if you finish your veggies, and you wait until you're done with dinner to ask for it.