(Strip Number 4755, Original Publication Date, 4 February 1987)
Panel 1: As she and Mike continue their walk down the street, Liz calls his attention to the fact that Christopher is hauling a toboggan behind him.
Panel 2: Although we can't see his face but can see that his hat is vaguely patterned like a target, he probably does the tongue-stuck-out-after-getting-hit thing because he's been pelted with snowballs.
Panel 3: He asks Mike and Liz why they did that.
Panel 4: Lizzie says that they couldn't help themselves given what his hat looked like.
Summary: We should probably expect a Little Lindy show about her own inability to resist being a jerk to her peers and how unfair people were tempting her like that. Since she has no self-control or respect for boundaries, it's on everyone else to accommodate her being a malicious ass to everyone she meets.