How to make a paper airplane (nakamura lock)

Grab your paper.

Fold in half lengthwise.

Fold the top 2 corners down to the half line.

Fold down, like so.

Fold the 2 corners to the center.

Fold the small triangle up.

Flip over.

Fold in half, like so.

Fold down one wing.

And the other.

Here's the final view.

Congrats!