How do I address Siri on one device over another in the same room? So that they don’t all go off at the same time

How do I address Siri on one device over another in the same room? So that they don’t all go off at the same time. I have an iPad two iPhones and a MacBook Pro often times in the same room together and if I just want my iPad to play my morning playlist they all go off. There must be a way! Show me the way my fellow Apple users! Please…It’s early and my patience is thin. LOL