Trigger a Trance Memory.

Discover 17 of 40 biomes.

Gain the trust of an Ocelot.

Stop starvation using Rotten Flesh.

Play a music disc in a Jukebox.

Create an Iron Golem.

Craft and place a sign.

Use Shears to obtain wool from a sheep.

Cook and eat a pork chop.

Construct a Dispenser.

Punch a tree until the block of wood pops out.

Acquire diamonds with your iron tools.

Build some bookshelves to improve your enchantment table.