For the last 15 years gallerist Andrea Rosen has offered a studious, restive, exuberant outlook about art. But also philosophic. Ask her something and she’ll give you a “history of” answer. Lately, she seems to be expanding her vision to good effect. “Looking at Words,” which features more than 300 works on paper hung salon-style, is her latest foray into exhibition-as-investigation. All the works have words in them, although, interestingly, you look through the letters and the words at the images themselves. Physicality trumps reading. Confronting this much material in one room is daunting. But it’s worth it, if only to glean the mind of an art dealer in motion.