Hobbes is sleeping curled up on the floor as Calvin walks up. Hobbes yawns with his mouth wide open and Calvin takes the opportunity to insert his head into Hobbes gaping mouth. Hobbes is rather startled by this. Afterwards, Calvin takes a bow towards a non-existent audience, saying, "Ta daa!" Hobbes looks a bit fed up in the background and thinks, "Sheesh."
https://cdn.mastodon.org.uk/media_attachments/files/117/207/109/993/161/944/original/6e02a9a726999a23.gif