The Free Selection (or the lasso) tool lets you freely draw selections by hand. You can select objects of any shape or size by simply tracing them by hand.
Choose the Free Selection tool by doing one of the following:
Tip: You can cycle through Magnetic, Free, and Polygonal selection tools by pressing Shift ⇧ + L on your keyboard.
Drag in your image to draw a selection. To reselect an anchor point, click the last point to remove it or press Backspace ⌫ on your keyboard, then continue drawing.