Title Panel: Oh boy, Garfield, the gooey scrapings off your greasy spoon's grill are gray? Please serve me a pastrami sandwich and a foot-long pickle spear.
Bottom Left: The panel at the extreme bottom left corner is a prime opportunity to see just how flexible Davis is with Garfield's anatomy. The left arm needs to be 12 inches long? No sweat. Don't need the other arm? Fine, it's 12 millimeters long.
The Gesture of Kindness, Rebuked: Jon is so generous as to not only give ice cream to Garfield, but to serve it for him, and even allow Garfield to administer his own chocolate syrup. It is an act of sharing, and faith in Garfield's responsibility, and trust that he will not abuse this trust. Garfield makes good on none of Jon's good faith. The cynical observation is not to trust anyone, not to share without limit, and to take what you can, when you can. The less cynical observation is that Garfield, contented and oblivious, or maybe simply not caring, as he totally shafts Jon on the syrup, is not the role model to follow here. It is a joke about nice guys finishing last, but given no indicators of which character to empathize with, Garfield is less about lessons than observations about How Things Are.
The meek shall inherit the earth, but not before they are taken advantage of, squirrrted, guck-ed and left with naught but an empty plastic bottle.