Antler Addict hit it on the head. You have to have a licking branch. I myself will hang a tarsal gland on the licking branch. I then use dominate buck urine on the tarsal gland (tarsal glands are available to purchase at some sporting good stores). If you cant find them at stores, go to the meat processor who butcher deer. I will make a large round scrape with the tarsal gland and licking branch above it. Then I will add Tinks 69 and doe droppings to the scrape. I usually make around 10 different scrapes. Mock scrapes really do work. Ive killed quite a few deer while hunting them...