Maine Coons are very vocal. These pleasant fluffballs love to adhere to their individuals about and converse by meowing, trilling, and chirping. Trilling is a mix of meowing and purring.  Look at the ears weekly. If they search filthy, wipe them out using a cotton ball or soft damp fabric https://catsandkittenstoday.blogspot.com/2024/02/cats-do-some-wacky-stuff.html