How many red envelopes does it take to ask someone to tell a fortune?

How much incense do you usually give fortune tellers?

To tell the truth, this kind of incense money is generally happy-go-lucky, and they won't give you much money. Generally, it's just a gift, ranging from 10 yuan to 100. However, fortune telling is superstitious and unreliable. It is better to be realistic. Don't believe superstitious statements.