Some walkers have internal roller balls that rattle to better draw in fish from farther away, and may include a blunted or even concave front end to splash more water during retrieval.Others may have designs that emphasise more on tail action to create a greater propagating wake that entice fish to pursue, and these have been unofficially named wakebaits.Poppers or chuggers get their action from a cupped face carved or molded into the front of the lure body, which funnels water towards its tail and produces turbulent bubbles and wakes behind it to imitate an injured or drowning prey.The traditional retrieve is to wait for the ripples to disappear and then to slowly "pop" the lure by twitching the rod tip, giving pauses in between lasting up to several seconds.Some models also feature an extra clacker blade that the prop strikes against, producing a much louder noise that can sometimes attract fish from further away.Sizeable fish can cause a sudden, noisy and spectacular splash when they strike a surface lure, usually giving the fisherman a fright in the process.