Smiley Face

A Smiley Face block is an item that was first seen in Theme 1-3. It is the least featured item in Angry Birds since it rarely appears in any levels. If a bird hits it, the smiley face will start to look dented and it will give you 1000 points when destroyed.

Smiley Faces seem to be fairly strong, as a Red will only dent it.

They are very minor items in the franchis. and the first one was used to hide a Golden Egg behind it. Smiley Faces are more seen in Weekly Tournament on Angry Birds Friends than the original game and it's is in at least one level of Angry Birds.