If you say Thailand is in Manhattan's bohemian Chelsea neighborhood, you're likely to get a laugh. But that's assuming the conversation takes place in a circle of people unfamiliar with Thai cuisine. And Royal Siam 1A is on 8th Avenue. The diminutive affectionate suffix "chik" confirms that the size of the place is small, and it is cozy and quiet. This place is hardly suitable for a dinner-party or a family celebration but it is right to come here in the afternoon or in the evening to taste delights of Thai gastronomy. Of course, in the menu there are only...