Why does my cat meow back?

When I meow at my cat she gets really excited and interested and starts meowing back at me. It's like we are actually having a conversation, but I'm not a cat. So, I don't think I could really be saying anything since I don't actually speak cat. Why does she meow back and act like I am really... show more When I meow at my cat she gets really excited and interested and starts meowing back at me. It's like we are actually having a conversation, but I'm not a cat. So, I don't think I could really be saying anything since I don't actually speak cat. Why does she meow back and act like I am really meowing like a real cat? It's so confusing.
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