Windows and mirrors in a 1961 Westbury home’s well-hinged front room make it possible to look out and in at the same time. The cerulean-hued space off the entry hall can also swing between uses. It’s a living room now, but shows up in the listing specs as a dining room. A $5K reduction last week brought the asking price for this tidy property to $155,000; it first appeared on the market in August.