To test whether it is done, stir the custard with the spoon and then run your finger through the custard left on the back of the spoon. (strawberriesforsupper.com)
And I haven't brushed my hair in years; I'll just run my fingers through when it's wet and call it a day. (health.com)
Gently run your fingers through your hair to blend the extensions in with your natural hair. (sugarandchiffon.com)