It depends how you became a psychic medium; if you had a mentor, they will probably want to keep an eye over you for a while, just till you feel comfortable on your own. Even if you've come to this realization on your own, it can be helpful to get advice and guidance from an experiences psychic. In some cases, your clients might only trust you if you are known to have been mentored or guided by an experienced and known psychic.
Next, I ask for the Spirit who is ready for your session to appear to me. Sometimes, they appear in front of me, next to me, right behind me, sitting on my living room couch, standing at the bottom of the stairs, in the kitchen near the stove - basically wherever I am and going to be looking, that’s where they show up. At this time, I can see most of the features of your loved one - their appearance. And generally, they look exactly as they did when they were alive, though they do get to choose the age in which they appear (who wouldn’t?!).
Senses used by mental mediums are sometimes defined differently from in other paranormal fields. A medium is said to have psychic abilities but not all psychics function as mediums. The term clairvoyance, for instance, may include seeing spirit and visions instilled by the spirit world. The Parapsychological Association defines "clairvoyance" as information derived directly from an external physical source.