Well.. they do alot of things..
Hit zombie pigmen.
Look at Endermen
*THEY DIG STRAIGHT DOWN*
Punch a tree with a pickaxe.
Mine diamonds with a stone pickaxe.
Place beds in nether.
Hit zombies with crafting tables or dirt.
Build dirt house.


Yeah... My noob friend does this kinda stuff. That's why I put her on easy and turned on keep inventory.