Put one (two*) action cube on a warehouse you would like to replenish with resources.
Spot all hexes with your undepleted peasants, from where you can gather the chosen 
resource. Gather from each mentioned hex 1 resource more than the number of your peasants there.
Gathering resources on different terrains:
Gathering resources from 1 hex, depending on the number of peasants there:
In your turn, by choosing gathering resources as your main action, you can gather different or the same resource several times, spending your action cubes each time.
[*] If there are any action cubes on a warehouse, meaning you've gathered this resource this round already, then spend 2 action cubes to gather this resource once again.
Mike puts 1 action cube on the mill and gathers 4 with his peasants on two meadows.
Next, he puts another 2 action cubes on the mill and gathers 4 again.
After that, he puts 1 action cube on the sawmill and the quarry and gathers 3 and 4 .
