Alright! I just typed a lengthy response involving examples of animals executing precognition, but unfortunately, my tab crashed and I lost the response. I will instead cut to the crux. Elaborations can always follow.  
You are actually asking two question: (1) how I, as a child, noticed my genetically available abilities of telepathy and precognition; (2) how we, as a group, developed these very abilities.

(1) I already stated that all humans are already exploiting telepathic and precognitive connections. If we bothered to sensitively, continuously examine our memory flow, thought flow, and emotion flow. These "flows" are NOT random. To repeat, the flows of memory, thought, and emotion are nonrandom. What happens is that scientists and doctors behold the brutal complexity of "the brain" and backwardly infer that their own mental dynamics involve degrees of randomness. Hahahah!!! How about degrees of freedom? Linear cognition is simplistic and deterministic. Nonlinear cognition involves levels of self-determinacy, and multifractal (stratified) interactions therein. Telepathy and precognition occur on nonlinear levels of cognition. And as a child, this nonlinear processes are most consciously prominent. Subsequently, the "stages of development" serve to clarify (suppress) nonlinear cognition into subconscious and unconscious sectors. Adult humans tap into these sub-realms only while praying, meditating, fantasizing, daydreaming, nightdreaming, distressed, and manic. But again, all children vividly experience coherent nonlinear content. If you've read my previous posts, you'll understand when I say that children are still mainly embedded in Ls. They are learning about Lo, so they carry their relational way of being into the object-level world.  

I won't go into my personal childhood. However, I can state some childhood circumstances whose violation will result in severe suppression of telepathy and precognition:(a) Abuse (this is a broad category).(b) Torture (this is more common than believed).(c) Mental degradation (constant belittlement, humiliation, condescension, insulting, bullying, ignoring, etc.).(d) Malnutrition, sleep deprivation, and other physiological deficits.(e) Social isolation (forced solitude, not chosen).(f) Nature isolation (forced indoors).(g) Labor bondage (forced to work).(h) Parental abandonment. (i) Constant exposure to abuse, torture, or degradation. 

I was so fortunate to not experience any of these circumstances. And I want to emphasize that, even if you did experience these, your divine abilities are intact, yet the lie dormant. As a child, I noticed their dormancy...and worked daily to reactivate them. 

(2) Our group is small. Four people. We found each other through synchronicities, and by this time, we were all beyond accepting their reality. Rather, before meeting each other, we were already exploring the theoretical foundations of psi phenomena. Once converging, we discovered a metatheory of reality which claimed to logically unify, and mutually explain, the mental and physical aspects of the universe. This metatheory is called the Cognitive-Theoretic Model of the Universe (CTMU). I recommend reading the introductory paper: CTMU - A New Kind of Reality Theory ( [link to heyhepto.seanwalsh.netdna-cdn.com]

Working within this theory, we discovered that psi phenomena are occurring within an entire semilanguage Ls. Read the earlier posts. The more we delved into the metaphysical functionality of Ls, the more we "attracted" psi. Until finally, we fundamentally recognized that self-telepathy is a reformulation of memory, mutual-telepathy is a reformulation of mentation, and precognition is a reformulation of emotion. Once reformulated as dual processes, memory, thought, and emotion become INHERENTLY PSYCHICAL PRODUCTIONS. 

Since this recognition, we have been experiencing progressively strengthened psychical connections with each other, anybody we see, and indeed, the entire world. This Earth is meant to be a Heaven. Not a utopia. A unitary place of cooperation, creativity, friendship, and levels of love. Psychical abilities are ethical powers. Yes, we have powers. More soon. Pardon typos. Thanks for reading.