This is psychic taste. Perhaps you taste cookies when the spirit of your deceased grandma visits you,or maybe you can taste (not smell) the cigarette smoke from that great uncle that everyone just wondered about. What ever the case may be, that is Clairgustance.
This is psychic touch. This can be feeling the temperature change when a spirit is in a room or feeling the spirit touch your shoulder.
This is psychic hearing. This can be hearing the voice of your spirit guides offering you advice, or it can be hearing music when working with faeries and angels. It is hearing things that have no physical explanation and cannot be heard by the ears.
This is psychic sight, such as in prophetic visions or dreams. It is also seeing faeries, spirit guides, spirits, auras, et cetera.
This is psychically knowing things that you couldn't possibly know otherwise. For example, upon first meeting someone, you know very intimate details about them, without ever having been told, or knowing that you're not alone in a room, that there is some entity in the room with you.
This is psychic smell. If you work with faeries, perhaps you've smelled flowers or incense when neither was present: this indicates the presence of the Fey. Or, perhaps when alone, feeling lost and confused, you suddenly smell the perfume of your deceased grandmother who always knew just what to say to make you feel better. These are both perfect examples of Clairolfaction: smelling something when there is no physical explanation for it. Also, if there are other people around, you may be the only one who smells it. Of course, there are also a few medical conditions that can cause frequent occurrences of smelling things that aren't there (check with your health care provider if you have any concerns.)