Question: how to showboat in madden 20 pc?
Answer: Hold down LT + RT + A on Xbox One, or L2 + R2 + X on PS4 to showboat while you have the ball in the open field.
As you move into the endzone, press LT + X on Xbox One or L2 + Square on the PS4 to dive into the endzone.
You should only showboat when you are sure no opposing player can get to your ball carrier.