I teach languages all day. Our 2 month old says 'aaghoo' and I reply in full paragraphs
She started cooing this week and I've become that dad. She says 'aaghoo', I say 'Oh really? And then what happened?' My partner says I'm doing comprehension questions with an infant. Ammamma on the video call just says 'aaghoo' back, and somehow gets a bigger smile than me 🙂