People will tell others about your show because:
(a) they love it.
(b) they love it so much and are so confident in their love of the show, that they’re willing to risk being judged wrong in their assessment.
(c) it’s a generous act; it makes people feel good to know they were a linchpin of sorts; that they told others about your show and those others showed up and also loved it.
Ask yourself when’s the last time you went out on a limb and strongly recommended something to people.
And then ask yourself, why did you do it?