Avoid bringing up comics with neighbors altogether. I mean, it sounds cool but idk, you might just annoy them or make things awkward. What if they feel pressured to like your stuff or have to pretend to care? Once you lend a book, you're stuck waiting for it back or worrying they'll damage it. Maybe it's just me but I've seen these swaps turn into neighbor drama over nothing. Keep it simple and chat about the weather instead.