Self-inflicted paparazzi.

Build some bookshelves to improve your enchantment table.

Construct one type of each tool (one pickaxe, one spade, one axe and one hoe).

Cook and eat a pork chop.

Play a music disc in a Jukebox.

Breed two cows with wheat.

Gather all 16 colours of wool.

Acquire 30 Emeralds by trading with villagers or mining.

Construct an Enchantment Table.

Cure a zombie villager.

Create an Iron Golem.

Befriend five wolves.

Throw diamonds at another player.