After כורך we go single file. Each person at their own pace and comfort.
Same, except instead of korech, we start that at setting up the kaarah. It works out great, one guy will be pouring out wine by the makos into the other guy's charoses for maror and korech, and while one guy is darshening about why we say kol dichfin once we are already home with the doors closed, the other guy is opening the door for shfoch chamoscha, etc.