Even jiggling back and forth, leaning, or running circles can save your life in PUBG by never allowing the enemy an easy shot. This is especially important when aiming in a gun battle: you never want to make yourself an easy target.
Moonlighting as a parkour superstar also couldn’t hurt – the game is a lot more agile than it used to be and agile, aggressive plays are a lot more viable. Always look for some buildings or high ledges to climb.