Trained in hypnosis, Freud abandoned the practice as he developed his own methods.
Yes! While it's common for people to close their eyes while being hypnotized, it's not a requirement.
Yes! Hypnosis is a natural state of mind that occurs in most people on a regular basis.
Hypnosis is a state of intense concentration or focused attention marked by increased suggestibility. The hypnotic trance state is created by way of an "induction". An induction is a way get the conscious mind to take a back seat and allow access to the unconscious mind.
Ah, the lucky "Sleepwalkers"...
A partial list can be found on the "Services" page of Hypnotechs.com.
That's a big list, so let's start with 146 things...