Bivouac will likely be a time you look back fondly upon... after your three to seven days in the field, you will roadmarch to the night infiltration course, complete it, and then roadmarch back to main post. This you will do all night, and when you arrive back in garrison, you will be lucky to be standing up. You will also be lucky if you suddenly lose your sense of smell, because the scent of hundreds of very dirty privates is not pretty.
While on bivouac, however, remember to "stay alert, stay alive!". There is nothing a drill sergeant would like better than to catch you offguard, in order to steal your weapon or "kill" you. These are the realities of the field, and you are advised to move discreetly and always be on the lookout. Most of all, remember to stick together and watch your battle's back. And don't sing, whatever you do.