Put away those high heels and wing tips and get ready to take a hike with the first Princeton ArtWalk.Ten different art venues and businesses with art elements will be open during the walk, to take place tonight, Thursday, Nov. 3, from 5 to 8 p.m. Admission is free. Fine art will be the focus of the walk, although some additional events are scheduled. Most of the sites are located along Nassau and Witherspoon streets and include: Princeton University Art Museum, Arts Council of Princeton, Bernstein Gallery, Firestone Library, Cotsen Children’s Library, Lewis Center of the Arts, Princeton …