Originally Posted by mjm

Re they Japanese? And if so are they in Hiroshima?

If yes to #1, it would be very appropriate to bring something simple like sweets or savory snacks that they could eat later within their family.

If they are Western, I would say the best thing t do is treat it as you would at home. Some folks bring things, others do not.

If in Hiroshima, then anything from Tokyo will be well received. Not merely for the fact that it is from Tokyo per se, but more because you made the effort to share something they would not otherwise get. At the GHT the sweet shop has some candy covered chocolates (looks a little like jelly bellies actually) and a selection fo those would be great for a non-Tokyo person.