watch carefully

Not to be confused with Watch closely.

watch carefully is a screamer video uploaded to YouTube by Kleanex on May 11, 2007.

The video instructs the viewer to watch carefully several benign images, as well as three poorly drawn freeze-frames flashing for a second. The viewer is instructed to keep a close eye on an image of Blue Angel Aircraft in the final images. However, a picture of a Mona Lisa as an alien (taken from Worth1000) pops up, accompanied by a T-Rex roar sound effect, but extremely loud. After the screamer, the credits: "everything done by keenan."