The brim of her tweed fedora was pulled down low, but that didn't stop me from spying a makeup-less Naomi Watts on the 6 train this morning. While very pregnant (tabloids say she's about seven months along), the rest of her still looked Hollywood-thin. The actress, who got on at Bleecker St. and was still BlackBerry-ing away when I got off at Grand Central, was indeed the best-dressed on board: black blazer and mini, gray woolly tights and riding boots, with a Mulberry Mabel bag (gray) in hand and purple scarf draped nonchalantly around her shoulders.