While Peppermint Patty is more likely to flirt with Charlie Brown and play mind games with him, Marcie is more frank in her admissions of her feelings, and often asks Charlie Brown in plain language if he likes her. As he does with Peppermint Patty, Charlie Brown often responds to Marcie's inquiries by trying to evade the issue -- though it appears as if he has feelings for her -- which more than once has made Marcie so angry that she kicked him in the shins in frustration.
Peppermint Patty
Marcie