Servo language question

i tried to see if i could find anything like a diagram or somthing on google showing how to connect the switch to the arduino but i couldnt find anything. i also looked to see if anyone did Anything similar to what im doing but i couldnt find anything i also made this video a few day ago scince i dont have my gopro at the moment.

i know it can be a whole lot better. but thats just the way i am with everything. its also ok for my first video like that.