Lucy still has her round eyes (which look even weirder than usual in the second panel). Snoopy says "Shh!" And it's another turnabout/chase strip, demonstrating that, while Charlie Brown has been seeming depressed lately, he's still got a lot of his old self in there.
This one's pretty funny, but it's also worth examination due to the subtle way Schulz shows CB's relationship with Snoopy in the first panel. Of course, Snoopy's opinion of the kid declines in the coming years... as does Patty's and Violet's.