How do I rotate a head in Minecraft

Heads face towards you when you place them. If you want to place a head face left, move to the left of the spot you're going to place it in before you place it. This is the same as almost anything else that has an orientation, so I assume you want to turn it around with commands.

To rotate a head with commands, the tag you need to edit is the "Rot" byte. For example, to make a head below you turn west, use this command:

/blockdata ~ ~-1 ~ {Rot:4b}

Here's a full list of what direction each number reperesents:

• 0: south
• 1: south-southwest
• 2: southwest
• 3: west-southwest
• 4: west
• 5: west-northwest
• 6: northwest
• 7: north-northwest
• 8: north
• 9: north-northeast
• 10: northeast
• 11: east-northeast
• 12: east
• 13: east-southeast
• 14: southeast
• 15: south-southeast