If you’re unsure about which button does what, most dual-flush toilets make it easy to figure out. Usually, you’ll notice that one button is smaller or marked with a symbol like a half-circle or a single water droplet– that’s the one meant for a light flush, typically used after urinating. The other button, which is larger or marked with a full circle or two droplets, is meant for flushing solid waste. A simple rule to follow is: if it’s just pee, use the smaller flush; for anything more, go with the bigger one. It’s a small habit to build, but once you get the hang of it, it becomes a natural part of your routine.