"It is open!" Jack calls through it, waving. The shop windows are empty, showing him inside clearly, smiling at the newcomer. He's seen Echo around, so he's not particularly disturbed by the kobold's appearance, even though he actually had no idea what a kobold was. Now he does.

"Come on in, come on in," he says, waving again. He's seated at a table, so his only non-human features visible at the moment are the ears. "You are the-- kobold, yes?"