You bleed the air at the highest point in the cooling system, wherever that happens to be on your car. If you've just filled the system with coolant from the radiator cap, any higher point in the system is going to have air trapped in it. You really shouldn't have fluid boiling in the overflow tank, I suspect that you have fluid or air getting pushed into the overflow tank from the radiator, which is pretty odd. That probably means there is a lot of air that is expanding and getting forced out into the overflow tank probably. CLICK HERE to start downloading the factory service manual for your car. It's 85MB so you've been warned. Then go to the coolant section and follow the bleeding instructions.

The more I think about it, the more it sounds like a faulty radiator cap, or the wrong cap for the car. Did you replace the cap, and if so, did you get a stock (OEM) replacement from a Honda dealer? I still think this is a problem with air in the system, but you shouldn't be seeing the strangeness with the overflow tank with just air in the system. You should be having overheating problems (or at least running a bit hotter than normal) with air in the system. Make sure the cap is seated properly (check with the engine cool) and see how much air there is in the radiator core when you take the cap off..

To speed you along, coolant system bleeding is page 185 of the pdf file.. You owe me...