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If the shirt is colored, turn it inside out. Then, immerse the shirt into the water. Work it through and then squeeze out the excess water. You should only immerse one shirt into the water at a time. Put the shirt on a hanger and allow it to dry until it is damp. Once it is damp, remove it from the hanger. Iron it while it is still slightly damp. This will make the shirt crisp and wrinkle free. Make sure not to use too high of a heat setting if your shirt is made of a delicate fabric.
Immerse the shirt into the bowl. Hang the shirt to dry.