1. Identify the location of the green thing. 2. Grab your mouse/touchpad. 3. Move the mouse to move the clicker toward the green thing. 4. Once the clicker has signaled that it can click on the green thing, press the left side of the mouse, or if you have a touchpad, press your appendage that comes out from your hand on the touchpad.
If you're just going to be toxic when you lose an argument you need to get off, go outside, have real life interactions and enjoy real life.