whoo

"Upon my honour!" cried he, "there was never before such a beautiful thing in Nature or Art as you look, 'Cousin' Tess ('Cousin' had a faint ring of mockery). I have been watching you from over the wall—sitting like Im-patience on a monument, and pouting up that pretty red mouth to whistling shape, and whooing and whooing, and privately swearing, and never being able to produce a note. Why, you are quite cross because you can't do it."