I have read the ROBLOX wiki on the ContextActionService, but I still do not fully understand it. Please do not tell me that it is used to make mobile buttons on screen. I would like if someone who actually knows how to use the service to explain in semi-detail with a possible example.
The ContextActionService is a special service designed to help users create cross-platform inputs between PC/Mac and Roblox Mobile.
Basically a scripting service that helps one use many devices to play.