They're very subtle - we didn't notice them for a while.

In case of doubt, remember I'm French, I rarely make subtle remarks about relationships.

It's subtle and it's organic,

What is subtle about what is described here?

Dad's on a fishing boat in front of Carter's estate. If we get into trouble, all I have to do is press the button on the tiny transmitter in my pocket and he'll destroy the dome on top of Carter's house. Is that enough of a distraction for you?"

"Maybe we can work out something a little more subtle.

So often you don't even notice it.