oh yes, have some random Japanese person pick stuff and ask them to say eg "from whatevercity, greetings to the rest of the world. I am Mr x and picked some of my favourite candy for you. this one is called sgggddtgcf, it tastes like qetffhh. the bright green one is a bit special, be careful. -- I hope you will enjoy them!". show the shopping/picking. ask cute Japanese girls if men are most of your customers. maybe do that once per month. maybe personally address some of your customers in it (ask before).
that movie inside my head ain't stopping. :)