Caylus is a boardgame where you can choose where to place your workers to generate income. Also, the program uses f or "food" to refer to the pink resources, w or "wood" to refer to the brown resources, etc.  Most of the game is choosing where to place your next worker. This is done simply by clicking on the board. When buildings are activated, you will be prompted to pick up resources, or build a building, etc. These prompts appear in the right-hand section.