Soon after takeoff, a few rush to restroom, some will call air hostess for water, some will pull the bag from cabin above head, some will get up and look at other passengers, some will walk with their child (like a demo piece), some will go to their known persons and start conversation as if there is no time after.
Now, soon after plane touches ground and taxiing to its gate, some will unbuckle the seat belt as if they are under enormous pain, some will try to get up even while taxiing, etc.
Many such actions are risky, but they don't mind.