How quiet can you be?
How close can you get to someone who can already see you, before they know you’re there. How distracted do they have to be?
Try this when shaking hands with people. They know you’re there. They probably know you’re going to shake hands. So how much distance can you cover without being fast & without hiding your movement. Just your intent.
You can practice with pets too. Can you startle them? Not with a loud noise or sudden movement. Just by being close to them before they sense your presence. (be careful of mid to large size animals, especially those with large teeth or sharp claws. They may react before they recognize you)
How quite can you be & how quickly can you become that quiet?