I use the handheld one (see profile pic). Although if you have the fancy Japanese ones, you can pull your butt cheeks apart and adjust your hole position to line up to the water. With practice, you can position your poop hole with your hand so that it lines up with the water without thinking. It's weird at first, but becomes second nature very quickly. Just keep at it.

I was exaggerating about only liberals wipe. You can use a bit of toilet paper to dry the water. You could just sit there for two minutes to air dry, this happens when you're out of tp and it's fine, but most people don't do it regularly.