Make use of her Yordle Snap Traps by placing them pre-emptively to ensure that you'll have one off of cooldown during combat.
Avoid using Ace in the Hole in large team melees as it might be blocked by the wrong target.
Fire 90 Caliber Net away from the opponent to close the gap or hop over walls.
Keep behind allied minions if Caitlyn is harassing you with Piltover Peacemaker (it deals less damage with each subsequent target).
You can intercept Ace in the Hole's missile from hitting an ally if you stand in its path.