Her art practice since 1989 is diverse, explorative and innovative. Methods include photography, film, video, audio, holography, print, ceramics, sculpture, installation, projection, site-specific, live performance, multimedia, intervention, landscape, environment, street, public, private, temporary, permanent, community, commission, collaborate, curate, manage, direct, design, lecture, teach, facilitate, workshop, educate, consult, committee, volunteer, organise, research, study, learn, exhibit and travel.

Hilary is a winner of several public art commissions, travel awards from the Irish Arts Council and an arts bursary from Belfast City Council. Exhibitions, performances or lectures have travelled beyond Ireland to the United Kingdom, Germany, Estonia, Canada, Australia and Japan.