Detailed instructions for manual fan switch?

I'm just about to install my new thermostatic switch and just for peace of mind I'm going to also install the manual fan switch. Does anyone have a diagram of some sort?

Mainly I'm just wondering if i can pigtail the hot wire with another one right at the connector for the thermo switch and run it up to the manual switch and just throw a ground wire on the switch and attach it to a random screw mount

 

You just need to close the circuit for the fan to run. Running a wire to both sides of the thermo switch and then to the on/off switch will get it done.

 

Thanks, the other explanations I read before were quite a bit less straight forward than that.

 

Mainly you need is a SPST (Single Pole, Single Throw) on-off switch and two "piggy-back spade connectors" in order not to cut and/or solder wires.
Image here is descriptive.
Connection is as TOE CUTTER said.