subtle joke flirting

When he has just told a joke and you are both laughing, let you laugh die down slowly until you merely smile and stare into his eyes as if you have just noticed something new. Then, look away as if you realised what you were doing, put your head down and tuck a strand of hair behind your ear as if to hide yourself. Then lastly, bite your lip and give him a small smile. This will give him an obvious sign that he is sure to think was incredibly cute and make feel good.