Apple has added a new series of setup and training screens for enabling the “Hey Siri” feature in iOS 9, explaining the feature and taking users through a series of steps where they’re asked to speak phrases such as “Hey Siri”, “Hey Siri, how’s the weather today?”, and “Hey Siri, it’s me.” Users updating to iOS 9 — even from a beta to the GM candidate — will likely find that the “Hey Siri” feature has been disabled under Settings, General, Siri, and turning it on will take them through the process before the feature gets enabled.
The new training mode should likely help to reduce the number of false positives where Siri accidentally thinks users are talking to it, and will probably be particularly useful in the case of the new iPhone 6s models which will allow “Hey Siri” to function even when not connected to power.
.
