Final answer:
The question involves making shakes from the thickest side of a machine, indicating the need to adjust the machine to its highest viscosity setting or use ingredients that increase thickness.
Step-by-step explanation:
The question appears to be related to the operation of a machine, perhaps one that dispenses shakes where there is a variability in thickness. When making shakes from the thickest side of the machine, it's likely that the machine has different settings or sides that control the consistency of the product being served.
The term "thickness" typically refers to the viscosity or density of a liquid, and in this context, it suggests that the machine can dispense shakes with varying degrees of this viscosity. Therefore, the three shakes should be made by setting the machine to the highest viscosity level or by using the side specifically designed to create the thickest shakes.
This could involve adjusting the machine's settings or using ingredients known to enhance thickness, such as ice cream, frozen fruit, or thickeners like banana or yogurt.