Probably, all of you once made paper plane. If you made it just by folding paper, than it is origami.
Origami is very simple tehnique of paper folding. Any paper which is folded without using glue or any kind of tape is origami. Originally, origami is from eastern Asia ( probably from Japan, because nowdays they have few origami museums ). World known origami model is paper crane. Origami do not have limits, you can make litteraly everything. To make one, you need just square sheet of paper and your fingers.
I hope that I motivated you to make at least one origami.

Here are some simple origami tutorials :

CHAIR (easy) :
https://youtube/7hmM4bZ6i54

BOOMERANG (normal) :
https://youtube/_kprLtErg8U

CRANE (advanced) :
https://youtube/Ux1ECrNDZl4

If you do not like boomerang, chair or crane, you can find more tutorials here : http://www.origami-instructions.com/simple-origami.html
DO NOT CHEAT!
If you have some questions, share them with me in comments.
Have a nice day.

Oznake: origami, hobi, papir, diy