Using the Osaka Amazing Pass for trains is very straightforward: the physical pass itself acts as your ticket. The pass contains an embedded magnetic strip or an IC chip that is compatible with the automated fare gates at subway and private railway stations. To use it, you simply insert the card into the slot at the ticket gate (remembering to pick it up as it pops out on the other side) or tap it on the sensor if it is the newer contactless version. The pass provides unlimited rides on the Osaka Municipal Subway (all lines), the New Tram, and most private railway lines (like Hankyu, Hanshin, Keihan, and Kintetsu) within the Osaka city limits for either 1 or 2 consecutive days. It is important to note that the pass is not valid on JR (Japan Rail) lines, including the Osaka Loop Line; if you accidentally try to use it at a JR station, the gate will not open. The "active" period of the pass begins the moment you first pass through a ticket gate or enter a participating attraction. Additionally, you should always carry the pass with you, as showing it at the entrance of popular sites like the Osaka Castle or the Umeda Sky Building grants you free entry as part of the pass benefits.