cicerone

A guide who accompanies visitors and sightseers to museums, galleries, etc., and explains matters of archaeological, antiquarian, historic or artistic interest.

East, still doing the cicerone, pointed out all the remarkable characters to Tom as they passed[…]

he was in the act of making his evening plans with the same smelly but nice cicerone in a café-au-lait suit whom he had hired already twice at the same Genoese hotel [...].

To show (somebody) the sights, acting as a tourist guide.

Accordingly, as three o'clock struck, six dashing-looking light dragoons were seen slowly sauntering up the dining-hall, escorted by Webber, who, in full academic costume, was leisurely ciceroning his friends and expatiating upon the excellences of the very remarkable portraits which graced the walls.