The ACV mixture is typically used as a rinse after shampooing by applying the mixture over your hair in the shower.  If you wish not to shampoo, you could soak cotton balls in the ACV rinse and apply it directly to your scalp, then wash it out with warm water.  Another option is the spray method, which would allow easy application over hair and scalp. There is no need to wet your hair first. Simply spray it on, let it sit no longer than 10-15 minutes and then rinse. You can then choose to wash your hair with shampoo after.