When you find a piece of paper..

[papercrane]

When you're bored in public, and happen to have some paper, what is it that you make to show people?

[Rickygami]

If I have a while, Charles Esseltine's dragon in flight. If not, I fold a penguin I designed

[metrodj]

MIchael LaFosse's Origamido butterfly, or Joisel's crane if I have enough time.

[chesscuber98]

usually something simple or an own design

[spiritofcat]

Generally I fold my dragon, or if I don't have as much time, a traditional gondola.

[Unmutual]

The flapping bird. I can do it quickly, it's impressive to a casual viewer, and I'm practicing tricks with it (doing it blindfolded, doing it with one hand).

[Baltorigamist]

^ I folded a crane blindfolded once--it was fun.

I usually make whatever I'm in the mood to make at that time--of course, depending on the size/type of paper.

[loganorigami]

I normally doodle with the square from A4 and make my rocket design with the remainder.

[Radiant_Howl2628]

The simple crane or any model that i remember in my head. xD

[Joe the white]

Robert Lang's duck from "Complete Book of Origami" is one of my favorites to teach people that I meet, especially when they say they could never do origami. I like the simplicity of the model, as well as the outcome which is fairly duck-like and makes use of both sides of the paper. I had a lot of practice teaching it in hospital waiting rooms this past year .