a Wi-Fi based feature of the Nintendo 3DS, 3DSXL and 2DS handheld consoles where if one system comes within wireless range of another, data will automatically be exchanged. Many games and apps utilize this feature to provide the player with in-game bonuses and opponent challenges.
I recently got a 3DS, and immediately set it up, including my Mii, the Streetpass Plaza, and Streetpass. I found one Mii, but after that, nothing. For example, I went to my brother's house and his ...