Chuckle means to laugh quietly , especially in a way that shows you are trying to hold back or control a laugh. Giggle is to laugh in a high-pitched child-like way often making repeated short sounds. Children and women giggle , but we don't usually use it with men. Smirk is to smile in a way that seems annoying or that shows self-satisfaction. A smirk is made more with the facial expression than producing sound. You can use the captions to view all the words in this video.