How can you tell the difference between the weasley twins?

Answer 1

You can't tell by their looks, but, George is more sensitive than Fred.

Answer 2

Fred Weasley is slightly taller and has a slightly broader face compared to George Weasley. Additionally, Fred is more outgoing and tends to take the lead in their pranks and banter, while George is often seen as the slightly more reserved and thoughtful twin.