i have a few hours to kill in Nottingham on friday before a couple of interviews and stuff

i'm going to assume its going to be really horrible weather, so whats good to do thats near the centre of town thats a.) cheap and b.) fun. (is there is a laser quest, we have a winner)

any good coffee shops for people watching?

yeah, i dont wanna end up sat in costa for 3 hours going "meh"