You can find people who are interested in your rehearsal, because only such people will have enthusiasm. You can also find a person you helped and ask him to help, because such a person will feel that you helped him and he will feel indebted to you, and there is a great chance that such a person will help you come back. If he is a little unwilling, you can ask for food and water. There is a 90% chance that he or she will help you.