Here is a site of things you should not do: http://thoughtcatalog.com/makiko-itoh/2014/06/15-things-you-should-absolutely-avoid-doing-when-you-visit-japan/
But you can ex. Look at Youtube to get tips of what you Should think of before going there, and there are some really good videos made by people that live in or have vistit Japan.
So my sugestion is that you look more into it on maybe on the internet and resurce of what you have to do before going there.
Maybe you can make a list of things you have to avoid and things you need to thing of before going there.
That's really good. ^^^
For good things to do, one of the points in that list is to see what other folks are doing. That's REALLY good advice. Also, if you're going and are staying with a host family put yourself in their care and they'll show you all of the good stuff they can. The Japanese, particularly those who are interested in cultural exchange (and many of them are) will always be happy to take you places and show you things.
Also, GOOD FOR YOU for realizing that (duh.) it's more than just a prettily drawn world. Be open to trying things, take your social cues from others, be willing to try new things, be grateful and gracious, and you'll be fine. :)
There are some excellent advice listicles which cover fundamental etiquette and customs all over the web. Just google them and choose the ones you find the most helpful.
It isn't always helpful to "do what others are doing", though, because somebody can take (small) liberties and show an informality to their favourite "Baasan" (and don't you ever call her that) that will leave strangers being treated to a very cold shoulder. Unless you're being led around in a tour, learn the customary polite forms of speech.
I used to live there, so the advice I can give you is to learn basic japanese (just "where is this" or "how do I read this") since most of the people doesn't speak english. They are very polite and nice, so as soon as they realize you are a foreigner some of them might even invite you for dinner (it used to happen to me) mostly old ladies. And if by all means you don't understand how to eat in some places or if you happen to go to an onsen (those hot springs) just ask how to do it. They will help you.
And if you can, I would advise you to go to Miyagi-ken, it's beautiful and my hometown ╮(￣▽￣)╭
Though now I (unfortunately for me, but nothing against brazil) live in Brazil
Hey guys, do you have any good advice?
I am going on a trip to Japan in a couple of month and since I know that Japan probably is not like in the manga's I would love if some of you have some good advise for their customs, how to act, things I should notice or take in mind before going, etc.