Ha! This is such a joke! The best way to master this is by NOT DOING IT! Shut your dang phone off when your driving! This has got to be one the the most irritating and unsafe things i have ever seen any one do!
Step2
take your finger and press the power button,usually lit up red and has a picture of a circle with a vertical line in the middle of it, hold it down until your phone powers down.
Step3
set your precious phone aside and pay attention to the road.
Then when you reach your destination, put your vehicle in Park and turn off the engine and press the power on button, usually green with a circle and a horizontal line inside. hold until the power resumes and text and chat away with out endangering your self or others! :) yay! everybody wins!