Blender 3D Basics Beginner's Guide Second Edition

Time for action – pressing Ctrl + LMB for Lasso Selection

Unlike the other selection methods, the Lasso Selection tool is not started with a key command, but requires a combination of a key command and the mouse button.

1. If needed, press the A key once or twice so that everything is deselected.
2. Press the Ctrl button and hold it down. Hold the LMB down, and drag the cursor around the screen. When you have put the border around the vertices you want to select, release the LMB.
3. Press the Ctrl button and the Shift button and hold them down. Hold down the LMB while you drag the cursor over the vertices you have already selected.

What just happened?

You learned to do a lasso selection by holding down the Ctrl button and the LMB while moving the cursor around ...