In conclusion, you can use the command “Hey Siri, say yes sir” to get a positive response from the assistant.
Change how Siri responds
Siri can respond out loud or silently (with text onscreen). You can also see your request onscreen. Go to Settings > Siri & Search, then do any of the following: Change when Siri provides voice responses: Tap Siri Responses, then choose an option below Spoken Responses.
Go to Settings. Tap Siri & Search. Tap Siri Responses. Tap Prefer Spoken Responses to hear Siri speak responses, even when Silent mode is turned on.
Siri sometimes becomes upset when insulted. If you want to upset Siri, comment on her voice. Say something like, "Siri, I don't like your voice." Then, wait for the generated response. Responses will vary.
Open Siri by pressing and holding the Home button. Say "From now on, call me John Doe." Siri will confirm the new name for you.
Choose when Siri talks back
Siri has two options for giving you spoken feedback when you ask a query. In Automatic mode, Siri uses on-device intelligence to determine when to give spoken feedback. If you would prefer to always hear spoken feedback, select Prefer Spoken Feedback.
Many users are asking for an Alexa-like whisper mode for Siri in this Reddit thread. Amazon's virtual assistant is able to modify it's voice and actually whisper when speaking out replies! The only way to get a Siri whisper mode on Apple devices is by requesting it directly to Apple using their direct feedback link.
When you set up voice recognition, Siri can recognize multiple voices, so that everyone in your home can enjoy personalized music and media.
You can't change Siri's name, but you can specify how Siri refers to you. Create a card in the Contacts app with the name you want Siri to call you and it will use that name. You can also simply say "Hey Siri, call me [NAME]."
This just in... Siri's favorite color is Purple!
Although Siri is technically always listening in the sense that it is listening for its trigger phrase, it's important to recognize that it only starts recording after it hears “Hey Siri.” This means that Siri is not constantly recording or remembering everything you say.
Siri does send data back to Apple, but searches and requests are not associated with your identity to keep your personal information safe. Apple does not sell your data to advertisers or other organizations, and end-to-end encryption is used for all data syncing between your devices and the cloud.
Siri is exclusive to Apple devices, such as the iPhone, iPad, and Mac, while Alexa is available on a wide range of devices from Amazon, including the Echo line of smart speakers, as well as on other manufacturers devices with Alexa built-in. If you're going for compatibility, Alexa should certainly be preferred.
Tap Add to Siri when you see a suggestion for a shortcut, then follow the onscreen instructions to record a phrase of your choice that performs the shortcut. You can also use the Shortcuts app to create a new shortcut that uses Siri, or to manage, re-record, and delete existing Siri Shortcuts.