"Not sure that's something you should be bragging about," Suki responds, with a scathing dryness that could rival Zuko's own. "Besides, if I wasn't in prison or helping other people, you probably wouldn't have."

Suki feels she's earned the right to tease him. He should be able to tell that's what she's doing by the mischievous glint in her eyes.

If not, the second gentle poke should clue him in.