Unemployed villagers don't shake their heads when you try to trade with them

Steps to Reproduce:

1. Find an unemployed villager or a nitwit villager
2. Trade with them

Observed Results:

They don't shake their heads when you try to trade with them, or there is no way of interacting with them

Expected Results:

The unemployed villager/nitwit should shake their head whenever a player interacts with them