Awkward Train Rides

Conversation on the train today about the young lady sitting next to us:

Isla: "Mommy, what is THAT on her lip?"
Me: "That's a lip ring."
Isla: "Oh.   No, Mommy, that THING on her lip." 
Me: "Yes, that's a lip ring. It's like an earring but it's for your lip."
Isla: "Oh!" (Isla's still studying the lady's lip ring)

Silence....(Isla is still starring at this young lady)

Isla: "Mommy, look - she has BLACK fingernails."
Me: "Yes, she does."
Isla: "See that other girl, Mommy? (Pointing to another lady) She has pretty white nails."
Me: "Yes, she does."
Isla: "The WHITE ones are pretty."  

Okay...time to distract and change the subject - AWKWARD!!!