Matt LeBlanc's character on Friends wasn't exactly a great actor, despite his gig on Days of Our Lives. When Joey first gets his soap opera job as Dr. Drake Ramoray, one of his costars shows him how to react to dramatic soap situations: smell the fart.
Joey later discloses another acting tip -- when you get some bad news, just try to divide 232 by 13. LeBlanc was on the Graham Norton show with Zac Efron and Seth Rogen and bestowed some wisdom on them from the Joey Tribbiani school of acting. Classic.