Say what?

*** Various Usages ***
- to chime in during conversations
-record your friend's pet phrase to poke fun at them
-as a conversation partner when you're lonely
-when you have lost your voice because of a cold
-when you can't be bothered to answer
-when you're at a loss for words
-when you want to confess your love or propose
-record your partner's voice and listen to it when you're lonely
-record unforgettable phrases and drift in fond memories

and so on...It's up to you!
Exercise your originality and put XXXX to use in whatever way best suits you.