Close Encounters of the First Kind: Though the witness observes a UFO nearby, there appears to be no interaction with either the witness or the environment.
Close Encounters of the Second Kind: These encounters include details of interaction between the UFO and the environment which may vary from interference with car ignition systems and electronic gear to imprints or burns on the ground and physical effects on plants, animals and humans.
Close Encounters of the Third Kind: In this category, occupants of a UFO - entities that are human-like ( “humanoid” ) or not human-like in appearance - have been reported. There is usually no direct contact or communication with the witness. However, in recent years, reports of incidents involving very close contact - even detainment of witnesses, have increased.
Close Encounters of the Fourth Kind: Involves the person being unwillingly taken and experimented on inside the alien craft ( Otherwise known as abduction ).
Close Encounters of the Fifth Kind: is when there is direct communication between aliens and humans. This is the rarest one of them all and very few people have experienced it.
Close Encounters of the Sixth Kind: is when contact between aliens and humans results in permanent injury, and in rare cases, even death.