Whitefriargate is the scene of a colourful installation by Hsiao-Chi Tsai & Kimiya Yoshikawa inspired by "the seaport character of Hull". It's the latest in a series of exhibits using the empty shops and spaces of the street; really it's an effort to get people to visit this end of town. There's a bit more information here.
If you do fancy visiting Hull (and who wouldn't?) then be warned that Whitefriargate is pronounced as something like "Witfregit". For more helpful advice on meeting and greeting the natives I can recommend this site.