Does your iphone know what you're thinking? Does it listen to you talk?

Okay so me and my friend were talking about weird **** our phone does and i told him i was at work listening to a Wiz Khalifa song and i went to change it to "when I'm Gone" by Wiz and when i was scrolling through my music when i'm gone started playing because it was on shuffle. So when me and my friend were talking i took my phone out adn just out of cuirousity i hit shuffle and i swear on life "when I'm Gone" playyed. I'm freaked out lmao

No, it doesn't even look at me during.

Yes. Just hit the mic and say the words