I'm watching Bluey with my god sister and got this idea
You're with (Crush) and your little (Sibling/Cousin/Niece/Nephew) when they get sad. You ask what you can do to make them feel better, they say
"Dance Mode!"
"Oh No!" You internally scream
"What's Dance Mode?" (Crush) questions
When Little (Sibling/Cousin/Niece/Nephew) wants to play Dance Mode, Wherever you are no matter how many people are around, when they tap you, you have to dance. But your little (Sibling/Cousin/Niece/Nephew) can only activate it when there's music around
Or
Vice Versa with (Crush)'s little (Sibling/Cousin/Niece/Nephew)
Or
You are the little (Sibling/Cousin/Niece/Nephew) who wants to play Dance Mode