Terrance McKenna often suggested mushrooms talked to you.
A believer will agree.
A sceptic will not.
People have profound realizations on shrooms, some give the mushrooms credit for the insight, others credit themselves.
If you believe shrooms can talk to you, they probably will... not always in a literal sense.
Sober or tripping, you always can talk to yourself.
So, the jury's out on this one... either shrooms communicate, or they don't. If you believe shrooms can talk to you, they often do, so be sure to ask interesting questions. You might get interesting answers.