Alright next order of business is genjutsu casting. For all existing genjutsu the method by which you cast is by projecting your own chakra into the cerebral nervous system of your opponent. The chakra is used to cause a disruption or irregular flow of chakra that affects the five senses and initiates a genjutsu. What genjutsu is, essentially, are illusions that come about from the manipulation of the senses. However, there are other forms of genjutsu, hypnotic genjutsu, that don't affect the five senses exactly but rather one's mental state causing various affects from: putting people to sleep, getting them to reveal information, tapping into their memories, or even detaching their mind and consciousness from their body and putting them under your own will. The latter generally being a more advanced form which is only found in individuals with especially high degrees of Yin such as the Uchiha and Kurama (though technically only the former has the ability to manipulate one's will).
The traditional way of casting a genjutsu is similar to that of ninjutsu. First you gather your chakra and you use hand seals as a medium to project your chakra into your opponent. With genjutsu there is no physical stream of chakra that travels so it isn't possible to see chakra for a genjutsu coming by sensors or dojutsu users as previously misconceived. However there are various other ways in which you can incite a genjutsu within your opponent. Tell me some ways you think genjutsu can be induced.