Hi!! Thanks so much for your critique :) So the drink system works as follows:
each animal has a preferred glass, which we kept intentionally ambiguous to add an element of 'figuring out' which animal prefers which glass. It's roughly based on their size in real life (small, medium, and large animals correlate to the small, medium and large glasses)
to make a beer, you drag a glass from where they are stored onto the beer pump. you click the pump to begin filling the glass, and you must click again to stop the pour before it spills!
To make the cocktails, you must combine the spirit and mixer located in the fridge. This works by dragging one bottle over the glass first, and then the other, to create the final drink. The order of colours in the drink is a hint to which order they need to be made in ;)
In future games we'll definitely polish the controls and make gameplay elements way more easy to understand! Hopefully this provides some insight <3