Patent searchers, like dentists, often inflict pain, not on teeth but on egos. You may discover your great invention for a toilet seat fume suction device is not unique. It is therefore important to have a positive attitude. Before arriving for your search appointment clear your mind of trivialities such as where you are going to get next month's rent and meditate on cosmic things such as the future of the ozone layer or where dust bunnies come from. When you have achieved a zen-like mental plane you are ready for your patent search, which should be a pleasant research exercise conducted in a neutral atmosphere, opening new doors of reality and achieving elevated levels of conciousness.
Communication is the key here.
Bring any drawings, photos, and neatly typed descriptions of your invention's novel function and operation. Prototypes or models are fine, as long as they do not tend to explode, leak, smell bad or pose radiation hazards. Please do not bring groups of investors, fellow bikers, or visiting family from Willow Bunch. Un-toilet trained children are usually a detriment to the intellectal process, even though they may be useful in demonstrating innovations in diapering. By all means bring along your lucky rabbit's foot, mood ring, prescription medication and refreshments, if you must.