if your with a girl, and your just laying there beside her wondering what to do. a fun thing to do is pull up her shirt a little(not that much) and take a deep breath and blow on her stomach. this is extremly ticklish and you should get a good reaction from it, unless she doesnt like to be touched. you can also use it to your advantage by starting some sort of tickling game. this is fun, one time i was doing this with a girl, she ended up on top of me and we just stopped stared at each other and started to kiss. i suggest you guys try this because most likely it will work.