Use the confusion of enemies to your advantage. See someone building? Start building your ramp to get to on top of their build but use the same material as your opponent to disguise the noise. They’ll think your building noises will be their materials which can give you the drop on them.
Feeling mischievous? Get on top of an enemy fort and close them in by placing a floor or roof structure at the top. The confusion that ensues can help you get an upper hand as they try to break free.
For traps, place them above doors and around corners where players are likely to run through. Dropping loot underneath a trap is a great way to bait unaware players. During intense building fights, try placing random traps on your walls as players won’t have much time to react during a fight.