Keyboard shortcut
L
toggle between

and
Shift ⇧ +
L
Toggle between

and

+
shift ⇧ =

+
opt ⌥ =
The Lasso tool is useful for making freehand selections:
- Select Lasso tool in the Tools palette.
- Drag to draw a freehand selection border.
- To close the selection border, release the mouse.
Tool Options
You can use the following
Lasso modes:
New - to draw new selection.
Add To - add to border of existing selection.
Subtract From - substract from border of existing selection.
The Lasso tool also has an option called "Anti-alias" to smooth the edges of a selection.
Learn more about how to enhance a selection.