Acrylic paint is fast-drying, so unless it's removed immediately from skin, it can be hard to take off. Acrylics can be diluted with water when wet, but once dry, water will not be able to take them off. Techniques other than the traditional soap-and-water method must be used. A combination of oil and rubbing alcohol can be used to take spilled acrylic paint off of skin.
Pour baby oil over the paint stain on your skin.
Use your fingers to rub the oil into the paint to help break it up. Use your fingernails to gently scrape the paint off.
Pour a small amount of rubbing alcohol on a cotton ball.
Dab it on the paint that didn't come off with baby oil.