If you want to move a vertex, which is connected to adjacent lines, triangles or quads, you have to enable "Move Adjacent Data". It's the "A" button next to "Show All".
You can use keys on the keyboard, instead of mouse keys.
'K' emulates a left mouse button in the 3D editor.
'M' emulates a middle mouse button in the 3D editor.
'L' emulates a right mouse button in the 3D editor.
You can use keys on the keyboard, instead of mouse keys.
'K' emulates a left mouse button in the 3D editor.
'M' emulates a middle mouse button in the 3D editor.
'L' emulates a right mouse button in the 3D editor.