People always ask me how we tell the twins apart. The only sure physical difference is that their callicks swirl in different directions. Jacob's goes right, John's left. Everyone wants to know how I tell them apart though aside from the callicks (which I've never used as a guide, by the way). That's easy. They have totally different facial expressions. Can you guess who is who?
"show me your eyes" "give me a smile"
"where is your nose?"
"what are you doing?"
Do you think you can guess? Answers in the comments section!