Soft openings: Harvard Square’s Wusong Road (112 Mt. Auburn St.) is quietly open in the old Les Sablons space, with 50 seats and a limited dinner menu Tuesday through Saturday. On the first floor, a Hong Kong-style deli with barbecue rice plates will debut during the second week of January. In the meantime, head upstairs to try American-style Chinese food (summer rolls, Peking ravioli, chicken fingers) and tiki drinks.