If I move nose, the cartilage area makes click/popping noises. No pain. Some minor congestion. Recently had a small impact to nose. What to do?

Leave it alone. Recent injury may have caused some of the cartilages/tissues there to come loose..Thus some clicking may be observed with movement. If it is no pain, no need to treat. Just leave it alone for awhile to allow complete healing which should resolve the clicking. If in doubt, consult your doc.. Good luck.