How would I type the command to use the boost? Also, how would I add other sticks to the command?
The current build we use for cgminer (posted on the front page, or downloaded from your supplier) have these automatically tuned on by default now. Unless you are having a problem that requires this to be turned down or off, no additional switches are required.
If you look at your cgminer window, you can see that AsicBoost is enabled by the + symbol at the end of the miner name.