Think of it like... there's this one guy you don't particularly like. You can tolerate this person enough to speak to him normally like anybody else, but at times, you make a crude, backhanded comment at his expense, just to let him know you don't like him without making a scene. In short... be petty.
Thank you very much, both Jasper and villager gave me a bit of trouble but gave it my best for both of them. Voice acting is a skill I'd love to master (if that's even possible) so any advice helps and expect to see me in the future.