Buy tables and shelves. Fill shelves with beverages like beer or whisky. Hire waitresses and other workers to help you make your customers happy.
Remember - happy customers are paying customers!
But also keep an eye on your workers happiness, otherwise they might leave you!

Besides all of your customers being thirsty some customers enter also your saloon hungry. Build a kitchen and cook them some food.
Serving food pays better but requires more work. You can also hire chefs to help you!

You can place objects and decorations freely in your saloon. Choose between multiple objects to place, like tables, shelves, bars, furnaces and more!