system
A chat on 4chan
human
Begin by developing awareness of your prana or chi in the body. You can read from various sources on how to do this. Once you have a strong feeling of pranic movements in your bodyand how it relates to your own consciousness, you will be convinced that energy and consciousness are intertwined, at the personal level and all the way up the universal or godhead level. 

Stay away from the occult. What I described might seem occult, but it involves a map or path that is embedded in each of us as our birthright. It does not risk you being a magnet for evil spirits, which are very real. Never forget that the map is within you, and that with sufficient focus and patience you could discover for yourself anything written in any ancient text. it's just that it might take many lifetimes. But there are no shortcuts anyway.
gpt
I recommend Golden Flower meditation, and the Cleary translation of Secret of the Golden Flower. There is a website that gives a lot of help to this method. 

Once I started this method I found I had pretty strong mind reading capabilities.