"I as a mentalist have acquired a set of skills that although natural, seems almost supernatural. The psychic can allegedly read minds supernaturally. The mentalist is just hyper-perceptive, so much that he may as well be able to read minds, at least under the right conditions."
This implies that you are using genuine skills. ie: That psychics lie but you're being honest about the methods you're using.
Are you?
If not, I suggest rewording it. Or being comfortable with the dishonesty.
Personally, the only time I explain anything about what I do is during my fair/solo busking shows - and that's only because otherwise people will be expecting comedy magic. If I'm doing a parlor/stage show, they have the flyers/promotional material to tell them what to expect. If I'm doing strolling performances, I just say I'm an entertainer hired by the event, usually.
Your original post states frustration that people are calling what you do magic tricks. I think that would be better addressed through the script used for each routine, rather than trying to do a blanket disclaimer (which will, in all honesty, probably be ignored for the most part - people form their own opinions usually). I suspect it's something about the way you're presenting each piece that makes people think of magic tricks.