- Diversify your itinerary. While I have absolutely no problem staying in Tokyo and fukking about, 'cause there is so much to do there, you more than likely want to enjoy as much as you can instead of staying dormant in one spot. Whenever I go with friends they bounce about, like the last time they spent 3 days in Tokyo, went to Kyoto for one night, spent two days in Osaka and then back to Tokyo.
- Learn which train pass bundle is best for you and what you got going on. The last time I was there, I think I copped some Unlimited train pass but when I looked it up recently, it went up in price and "Wasn't worth it", and other options were given in it's place. I'm shyte with names and remembering prices, but you definitely want a train pass of some sort, so research that and see which one is best and where to get it. It's not hard (pause) at all.
- Look for a Data chip/bundle plan thing and stay connected. I'm a technological Neanderthal when it comes to functioning in today's connected world, so I've no data plans, don't use my credit card, no apple pay, google cash, Cash app, Electronic boarding pass, AI assistant, Siri, smart watch none of that shyt. I got a chip I put money on, I use cash everywhere and I connect to the Internet on my phone only through wifi. Certified Caveman. But even I can't do that shyt in Japan, so I got a data bundle. I doubt you're like me in that regards, but in the event that you might be, nah. Cop a data plan so you can have information on damn near anything you doing or looking for, especially when it comes to GPS shyt 'cause asking for directions/assistance in Japan can be a mixed bag.
Both train and Data shyt can be found in a youtube video of your choice.
- Learn about tourist traps and try and stay away from 'em. Lots of places sell merch and other interesting shyt for super marked up prices, while the same shyt can be found somewhere else with a bit of due diligence. Don't pay for the privilege, breh, be frugal out there 'cause Japan can cost.
- Get one of those Japanese Translator apps. I use Papago and it's technically a language translator app in which you can scan shyt with your phone and it gives you back a somewhat accurate description of the product. It won't be entirely accurate, but you'd have a gist of what the item is you're looking at, but the feature I love best on it, is the ability to translate sentences from English to Japanese incase you need to interact with someone who's grasp of English is poor or they're frustrated that they aren't being as helpful as they can due to the barrier. IT also translates voice, so that's golden in situations where you don't want to be handing a stranger your phone to type shyt. I'm sure this tech isn't groundbreaking and Google/Apple has some iteration of it that you might already use, but still. Came in handy for me looking for a laundry mat, talking to store clerks and meeting people in arcades or bars.
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Everything below this line is just me talking shyt and my experiences, not germane to yours, but still.
- Watch where the fukk you put your shoes breh. I had some pretty comfortable Pumas get jacked in a hostel by some polite jack ass that left HIS shoes in their place. Didn't even put them shyts on, I think I gave them to someone homeless and got directed by the overly polite hotel manager where I could get cheap shoes. He prolly stole them for all I know. General crimes of these natures are low in japan but not nonexistant.
- Learn how to say "It's ok, or thank you, don't worry." in Japanese if you're considerate, 'because it's actually kinda scary watching someone try and speak to you in English and then have a whole existential crisis because they think they're failing at executing a task they trained or previously thought they were capable of. Had a store clerk almost start crying because she couldn't tell me what a Kirby product was I was trying to cop one time (I think it was like an event planner but it looked like stickers) and I had to keep bowing and saying "It's ok, it's ok." until someone stepped in and broke us up. shyt was scary. That's when I copped the English to Japanese app.
-If you drink booze, drink booze with everyone. The Japanese has a drinking culture that's pretty robust and I've made and met too many temporary friends over there drinking, buying alcohol to the point I was through Shinjuku, specifically Golden Gai drinking with random people, drinking with chicks and even had a 'polite' match with a sumo wrestler out in the streets. It also helped that I brought a few bottles of rum I know they wouldn't have there and I got to take shots of some pretty 'high end' Japanese liquor without paying (I left one unopened bottle and drank another one with the bar owner and his friends) but that's just be me being extra.
- Stay away from the Africans bothering you on the street. I assume you're black, so if they see you, they'll instantly run up on you trying to sell you everything under the sun, especially p*ssy. That shyt was happening in Roppongi and it was to the point I had to literally jog away from duke and was like "Yo, I'm good. fukk off, please." Japanese women are down to fukk, breh, like anywhere else in the world but Japan is the last place anyone should be tricking 'cause if you get locked up or in trouble with the law you're in for a rough time.
Can't really think of anything else, and to be honest I don't know how helpful most of this is past me telling you things you should know. Hopefully someone will give you sites and places to check out specifically and there are always youtube vids to check out, but all in all, stay chill, cop a bus pass, have a plan in mind and enjoy, breh.