First thing before you putt check the speed of the green SLOW, STANDARD, FAST, VERY FAST, TOURNAMENT, CHAMPION SPEEDS ALL require different amounts of power to hit a putt 10 feet
second hit the GREEN VIEW button you can see the slope of the green by the way the balls roll, how fast the balls move also tells you the severity of the slope and direction of the slope
third the number on the flag below the distance tells you if it’s downhill or uphill by the direction of the arrow , add or subtract this number from the distance to determine the actual distance required to hit the putt
forth hit the reverse camera angle to line up your putt based on the break of the putt, examples 1 ball over from the hole or 2 balls over ….
using the putter pal grid determine the amount of power required to hit the required distance ! Example a 10 foot putt on Tournament speed greens only requires 7 foot of power .There is a putting chart available here that goes from 1 Foot to 60 feet and what power is required for each speed of green to hit
Finally, close your eyes and hope for the best !