The Preferred Rep System (or primary rep system) in NLP is the representational system that someone most often uses to display their experiences and show them to the world. It can be via pictures, feelings, sounds, self talk, tastes, smells or auditory.
This is the representational system that we commonly and most easily employ. Detected by predicates and body language. It is different to the lead system, which is where people go to fetch information. The Primary representational system is where, eventually (but of course in milliseconds) the person expresses their inner world externally.
Where we say it’s detected by predicates, we mean the very artistic words they use. Words that include the senses of visual, auditory, kinaesthetic, self talk (ad) gustatory and olfactory.