Hiccup starts playing around with his fingers. He had already reviewed about ninjutsu, and was ready to tell his sensei each and which of his knowledge.
"Ninjustu... Ninjutsu is the general term most ninjas use in almost every jutsu they perform. Unlike Genjutsu, the effects are felt by a ninja. It varies greatly, from ninjutsu used to evade attacks, to ninjutsu used to attack more than what is expected. When used by an experienced shinobi, nature manipulation can be applied. For example, Naruto Uzumaki's Rasengan can use Wind Manipulation to create the Wind Style: Rasengan and the Wind Stule: Rasenshuriken."
Hiccup sighed a little, squating behind the tree while speaking to his sensei.
"Ninjutsu usually requires a ninja's chakra and handseals. Handseals are done through weaving of hands. The twelve handseals are : Tiger, Snake, Ox, Rat, Ram, Monkey, Horse, Hare, Dragon, Dog, Boar, Bird. Handseals are not always needed to perform ninjutsu, and experienced ninja can perform handseals at a faster rate, some can even do it without the use of handseals."
As he enumerated the handseals, he counted with his fingers. He felt like he can't say anything more, but he wanted to impress his sensei.
"Additionally, ninjas can utilise Kekkei Genkai. By mixing two of the basic elements, (Wind, Water, Fire, Earth, Lightning) at a perfect ratio, one can create a Kekkei Genkai. These are usually passed down in a clan. Yamato has explained his Mokuton, Earth being focused on his other hand, Water being focused on the other at an equal rate. When mixing three elements, the Kekkei Tota is created. Hiruzen Sarutobi has noted that the Truth Seeking Balls (Used by Hagoromo Otsutsuki, Obito Uchiha, Madara Uchiha, Naruto Uzumaki) is created by mixing at least 4 elements at once."
Hiccup, after speaking, started shaking away his hair, just out of boredom.
"When using ninjutsu, there are two kinds of manipulation, Shape Manipulation and Nature Manipulation. Shape Manipulation is changing the form of chakra to the desired form. Nature Manipulation is changing chakra to a basic element. When performing ninjutsu, it can be used separately or in conjuction."
Hiccup wiped his face with his left hand, trying to remember what he wanted to say next.
"The Sage of the Six Paths (Hagoromo Otsutsuki) was said to be the one who explained the nature of ninjutsu and he spreaded the said technique. He said that he travelled the world to spread "Ninshu", and ninjutsu was made for wars. Ninshu was originally made to make people have a better understanding for each other. Instead, people made "Ninjutsu" instead."
He knew it was a little more, he knew it was almost done. He then remembers the last statement he wanted to say.
"Ninjutsu can be used with other techniques. When used with Taijutsu, like adding Ninjustu to a kick, Nintaijitsu is created. When used with Kenjutsu, like adding ninjutsu to sword techniques, Ninkenjutsu can be utilised."
Hiccup sighed, satisfied with the answer he had given. He felt he had conveyed all his knowledge.
Hope you don't mind, I took some data from wiki and expounded with my own knowledge.