Ok, go to the drink stall [Warm drink, soft drink] in your park, on the top there should be "get an item" than there should be an arrow that points to the guest that is complaining about being thirsty, where you can give the item by clicking on them. Repeat the process with different drink stalls and different guest 3 times.
Ok, go to the drink stall [Warm drink, soft drink] in your park, on the top there should be "get an item" than there should be an arrow that points to the guest that is complaining about being thirsty, where you can give the item by clicking on them. Repeat the process with different drink stalls and different guest 3 times.