Hi there, I'm Craig and I'm a strolling psychic... Oh... I guess the planets aren't lined up right... no, you can't just turn this stuff on and off...
Believability is the key here, that is the goal of the psychic entertainer, not to show off like a trained monkey doing card tricks. I have a deep personal loathing of this relatively new mode of thought in "Mentalism" in that it seriously devalues the craft itself (making it look like a bunch of cheap tricks) and it likewise creates a huge amount of impotency for the "performer", robbing him/her of the psychological advantages "normal"
mentalism has used for generations if not eons.
Yes, as with everything, there are exceptions. If you are one that works with that Professor/Researcher angle vs. the mystic warrior. If you are a linguist or expert body language reader, etc. If what you are promoting involves intellectual skill, then I can how certain types of demonstrations are viable and even practical. Not so when you are alluding to any kind of "other-worldly" angle however, for reasons noted in my first line of inferences e.g. you are not going to be mutilating perfectly innocent flatware or speaking to disembodied souls... even telepathy would prove questionable in that these skills don't fit the "intellectual" claim... not typically.
So, there are ways of getting away with such demonstrations that "fit" one's character, but not all of us have the kind of character that lends itself to this type of approach e.g. one must weigh out the who and what of their identity vs. what they demonstrate under said conditions. For me, being a Reader that strolls about and mingles with guest, works... "real" psychics do this but you won't find them doing drawing duplications, bending keys, and some of the other tricks & whistles magicians like to do. As has been pointed out time and again, if you want to be believable study those that claim to be real and follow their lead.
