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To encourage your cat to use the cat flap, start by playing with it and feeding near it. This will make them familiar with the sound it makes when it closes and opens. It also helps when you include your cat's scent on the flap. Next, move to give your cat an impression of movement. Try to entice them by holding their favorite food or toys. Certain plants (such as clary sage, cat germander, and valerian) are arousing scent that many cats love. Installing the cat flap A cat flap allows your cat to move around at will, without opening the door or wind