"Have a taste", said Calvin.
"Thank you", said Hobbes.
Remember what happened in the last page? Does it make sense that this is what is happening next?
Look at how the comic has Calvin's words on the top and Hobbes' words underneath. this is a cue to the reader to read Calvin's words first.
Look at the illustration. If there were no words, would you still know what is happening in the story? What details help you know this?