To someone who is used to doing it yes, but not to an amateur. Try to have a mentalism amateur keep the attention of an audience of 4 for the same amount of time that, at the very least, a seasoned amateur will. He should look into mentalism, but should also be prepared to perform only mental magic for the first while.
The object here is to move away from being a beginning to a working pro. I surely do hope someone who just started is not thinking about hopping right into restaurant work without the proper practice and people skills.
By the time you start getting paid you are no longer a beginner. I've performed Mentalism in strolling environments especially restaurants for years. It is all about presentation, all illusionists are entertainers. You'd be surprised what a simple equivoque, with borrowed objects and a written prediction on the back of a business card will do. It does not get more beginner than that.Yet working pros such as Osterlind do it all the time.
Workers do not rely on tricks to make their show a success. We bring life to the effects. Without audience interaction there is no magic.
" The man who said it cannot be done should not interupt man who is doing it." -Ancient Chinese Proverb