sentence: A woman is doing a tutorial on how to do water marble nails using water. sentence:  She uses a nail polish brush and dips it in water. sentence:  She gives the instructions on how to start with a base coat of nail polish. sentence:  Then she puts drops of different colored nail polish on the water surface. sentence:  Then she dips her nail into that paint. sentence:  She cleans off any excess nail polish that has smeared on the side of the nails with a paint brush and Q-tip. sentence:  She finally shares information about herself and her social media accounts.