Nowhere big, but she probably does a few performances in local cafes in Heropa or something- mostly to keep herself in practice. And NPC's have an easy time asking her to perform impromptu magic shows, so he could literally run across her showing her skills on the street.

I'm fine with it, but Sabriel probably wouldn't be- she'd initially just be flattered and flustered, her most likely reaction would be to magically mute him and tell him to back off if he keeps at it.