archly

"He raised an eyebrow archly and said, 'You might want to reconsider your plan.'"

"She looked at him archly and asked, 'Do you really think I believe that?'"

"The cat watched the bird archly from the windowsill"

"'Oh, I see how it is,' she remarked archly, her voice full of playful suspicion"

"He smiled archly when his friend told the silly joke"