What’s the best way to casually ask your neighbor for their WiFi password?

Well, before any of it, set your phone/iPad. laptop to remember the Wi-Fi パスワード so あなた only have to ask once.

Then あなた could say, "Hey, I need to (something on the internet that the person knows is important to you), but I don't have your Wi-Fi info. Can あなた put it for me?"

Then your good. If they say no, あなた just smile kinda sadly, but in an understanding way and say. 'Okay. it's cool." Then あなた ask if あなた can use their devise.

This is the one i always use, but if i'm in a クロス mood, I'll just straight up ask. >u<

good luck, man!

Contribute to their WiFi bill.