Simple: peel off the garlic skin, then put it in a string, arrange it in a circle on a slightly deeper plate, so that they are closer together, so that it is not easy to pour, then add a little water, just after the garlic roots pass, and then put it on the windowsill, preferably in a warm and sunny place. Generally, the garlic will change the next day, which means it is half done. Remember to give it later.