I rather like it, too, but back home it's strange to call a fellow by his first name unless you're family or you've known him many years. It's better if muggles don't believe in magic at all, that way there's no trouble. People like you are just fine, but others would harm us because they think we're evil or they're envious of our magic and want to steal it with Experiments.
You've heard of Merlin? He is an exceptionally famous wizard. He went to my school, many centuries ago. I cannot watch movies because they are muggle technologies and they're not suitable for children and would be a bad influence on one's morals. But mostly because I'm not supposed to do anything muggle.
Yes, that's it exactly! And the ancient wizard - everyone thinks he is the sort of doddery old grandfather who could never be involved in an adventure, but his magic is strong.
You know Mr Cassian? I like him. He's an exceptional sort of muggle. Where do you live, if it isn't in Everdale? Do you have family here? I'm not certain what a mutant is but if the X-Men have powers then it must be some sort of magic.