Who to Treat
First, treat yourself. You are a channel of Reiki, and you can be in as perfect health as your ego will allow you to express.
Next, treat family members. Normally, the family unit will have provided you with many benefits, and transmitting the health of Reiki is an excellent way to complete the exchange.
Third, consider treating anyone who asks. Asking is important. Because Reiki is a system based on intention, the prospective client should express their intention for health by requesting the treatment.