Frankly, I do not think it is. What we see as 'evidence' for telepathy is usually either fraud, or else subtle body language cues that out brain see and interpret even though our concious mind never notices it.
I would have a performance with some friends. We would rehearse a script I would write as if we were in a play or a movie. It would not be difficult to do it. I could invent things to say, and they could agree with me that I had just read their minds. We could also memorize a longer routine in case we needed it.