The term "more chattery" refers to someone who talks excessively or is very talkative. There are several synonyms to describe this trait, including garrulous, loquacious, verbose, voluble, and talkative. Garrulous implies that the person talks pointlessly or unimportantly, while loquacious suggests someone who talks a lot but not necessarily frivolously. Verbose is used for someone who uses an excessive amount of words, and voluble emphasizes the ability to speak easily and at length. Talkative is a more generic term that describes someone who enjoys talking, but it's not necessarily always negative. Regardless of which synonym you choose to use, they all describe someone who tends to talk incessantly.