While most of the time, you can select the vertices you need with just a couple of border selections and a circle selection, sometimes, you need a particular vertex or vertices. The same rules apply to selecting individual objects, vertices, edges, or faces.
Press Ctrl + Z to undo deleting Suzanne's vertices.
Press A to deselect all the vertices.
Move the cursor over one of Suzanne's vertices. Click the RMB to select one vertex.
Now, hold down the Shift key and select the other vertices with the RMB.
While holding down the Shift key, select a vertex that you have already selected.
This is probably the simplest way to select vertices, edges, and faces. It is also the most laborious, as you can only choose one at a time. However, if you use the other methods to select the majority of vertices and finish off with the vertex-by-vertex selection, it gives you the best control. Holding down the Shift key lets you accumulate the selected...