The colorful curiosities filling The Gallery at Penn College are attracting a good share of visitors, including college students eying occasions for hands-on learning. Jamie L. Mahoney, part-time photography faculty, and her students in Digital Photography (PHO 150) recently took advantage of the gallery space for an experiential session. The current exhibit, “Every Which Way,” features mailable sculptures and interactive installations by artist Abraham Ferraro, a shop supervisor at Rensselaer Polytechnic Instititue. The artwork is on display through Thursday, April 18, when the gallery hosts a closing reception from 4:30 to 6:30 p.m., featuring a gallery talk by the artist at 5:30 p.m. The exhibit and reception are free and open to the public.