PCs have a better chance to detect
hazards while exploring if they're using the
Search activity (and the
Detect Magic activity, in the case of some magic traps). If a PC detects a hazard and wants to
disable it, slow down. Ask the player to describe what the PC is doing, and provide concrete details about how their efforts pan out to ramp up tension. If a hazard requires multiple checks to disable, describe what happens with each success to show incremental progress.