Its very true that laughter can be contagious. As soon as your in a good mood, and someone else starts cracking up, you always tend to feel a smile start to creep over your face. But in some cases just the way someone laughs can make a situation funny. The new AT&T ads featuring fast phones in a situation full of slow ones (or vice versa) are clever and inventive, but every single time I see this ad in particular, I crack up. Its not just that laughter thats contagious, its homeboy in particular that gets me going. For whatever reason its that particular laugh is extra funny to me, and the cherry on top is his abrupt change in attitude after the rest of the occupants in the car all try to share the moment with him. Its too much, check the method below.