Not sure about this year engine but usually a spark plug socket, extension and ratchet to get them out.
I gap them to spec, apply a little antisieze on the threads and use a torque wrench to tighten 13 ft lbs. I also apply some dielectric grease with a screwdriver in the spark plug boots on the terminals.
I changed the spark plugs in my mom’s 2009. I give mad props to Honda for making it so easy to get to the plugs. I have a lawn mover that is more difficult to change the plugs in than a CRV. Good job, Honda engineers!!