You will need three coins of the same kind, the same weight, and size. (3 pennies, quarters, chinese coins, any type of coins — they only need to be the same — choose coins that you like, that feel right to you, that you can set aside for your readings).

After sitting quietly for a time, and meditating on what you need to know, you will cast your oracle by tossing the coins six times and noting how the heads and tails fall for each toss. Such as:
1st coin-toss — 2 heads, one tail, 2nd coin-toss —3 heads, 3rd coin-toss—3 tails, and so on, until you have tossed the coins six times.

Each formation of heads/tails will create a specific line of the hexagram. You will record the sequence and outcome of each of the six coin-tosses as explained above (1st, 2nd, etc.). And then you will find your answer/hexagram using the upper and lower trigram-matching grid which every I Ching publication has within the book.

When consulting the I Ching oracle, your answer comes in the form of a “hexagram”. A hexagram can be made up of both changing and unchanging “lines”. A broken line signifies Yin powers, a straight unbroken line is Yang.

Changing lines occur when your toss reveals three heads or three tails. Heads symbolize the Yang, three of them create a strong Yang, which will transform to it’s opposite. Vice versa with three tails, which create a strong or “zenith” Yin. There is also a method of divining the oracle using 49 yarrow stalks, which are separated “randomly” and counted in order to determine lines. The yarrow stalk method is the most ancient, and it takes a much longer time to perform, but both methods work perfectly well.
 
If you are requesting a reading, you can choose if you would prefer to cast the coins yourself, or have me do it for you.