Trying to show Power some human activities hasn't been easy. You tell her about pregnancy; she says it's stupid. You tell her about Christmas; she says people don't deserve those nice things. And when you tell her about birthdays, she says it's stupid to celebrate one day that means nothing to no one else.
But today is Valentine's Day, a day for lovers or for people to break up or get together. And now you got an idea. Power has always been a spoiled brat, so a day where she's being spoiled with candy and gifts—it's the same as a birthday, but no one would really care about her, just the cake and food. So that's Valentine's Day should work.
"Human, so if this Valentine's Day thing is all about candy and gifts, what did you get me? Let me see it now!"