The best detail in this strip is Garfield rotating his head to listen to the conversation of two people standing two feet apart.
Panel three: Is it more insulting or pathetic that Jon thinks he can convince Liz that an appointment written in a notebook can be spontaneously cancelled? Myself I'm surprised that Jon owns a daily planner at all. My calendar just says "read Garfield" every day.
What does Garfield's coy smile mean? I'd like to think it's a timely Tale of Two Kitties reference, and because of Garfield's well-known animosity towards the royals, he's glad the Queen cancelled.
So... Panel one: Is Liz about to ask Jon out, before he gets too eager and blows it? Or am I suffering from the same delusions as Jon? It's not because I'm a Jon/Liz 'shipper. I just like the idea of Liz, who knows exactly what kind of bad investment Jon is, making herself unhappy by dating him anyway. Because the lifestuff of tragedy is the dried blood of comedy.