Long before the Fall, the Hearns were among many clans that roamed the countryside doing odd jobs, living off the land, and occasionally performing for the buffers - locals they met in their travels. Among our kin were fortune-tellers who were renowned for insight and accracy. Most believed their talent came from wit and trickery. However, it was more than that. Shiva enhanced those abilities.
True telepathy. One of my ancestors, Simon Lazar, was the first to develop the ability. I've got relatives who claim Simon's genes are the source of all the telepaths that exist today. I doubt it, but he did have 14 children.
So, are you a telepath? I've got something else to look into.
The first thing our initiates must do is collect the teeth of coyotes. Some of our earliest readings were done with coyote teeth. The Reader would put the teeth in a cup, shake it, and dump the teeth into a bowl, divining fortunes from the results. Bring me a set worthy of our ancestors and I will grant you the power of Simon Lazar.
These are fine. Not too many cracked or broken teeth, although you wouldn't want them to be too pristine, either. The mixture's ready. It's not pleasant, but you must ingest the compound whole. Once you've done that, you will be primed to accept telepathic abilities.