Talk about a hidden gem in Seattle. The Little Red Hen is hidden in the Green Lake neighborhood, which makes it a short jaunt from my house. We went with friends, and what a blast. I'd not been there before the city-wide non-smoking ban when into place, and from what I understand it used to be so smoky you couldn't find your way through the place.
I'm from the midwest, so from a red-stater's perspetive, this is a honkytonk in every sense of the word. It's great fun, whether you like country music or not. It's not a pickup scene, and you'll find all ages in the place. They're open 7 days a week, with different things happening each night: free dance lessons on Sundays, Mondays, & Tuesdays (trust me, the regulars know how to MOVE); Karaoke on Wednesdays; and rotating local cover bands every Friday and Saturday.
You won't notice at first, but the regulars are the ones to watch. Talk about dancing; all shapes and sizes, and they know what they're doing. You can identify them by their apparel: cowboy hats, boots (ropers & kickers), and wranglers. The regulars can also identify you as a "poser" if you show up with your new cowboy hat and boots and don't really fit the part. If you go, make sure you don't look like a member of the Village People.
It gets busy on the weekend, and the place says it holds 168 people or 16,800 chickens (seriously). If you go, I would suggest arriving before 8:00 to be sure you can at least get in the door. Go earlier if you want a table. The bands will generally start playing at 9:00 or thereafter, and the place gets jumping.
Also, if you run into someone named "Rahul", don't let him buy you shots.