A french and american and chinese want to try there echo at Niagara falls. The american said: Hello, the echo responded: Helloo loo loo The french said: Bonjore, the echo responded: Bonjoo joo joo jor The chinese said: chan komento sah shang the echo said: ha !!?
I don't think you can get an echo from niagara falls - try the grand canyon or something... not that it would improve the joke