A set of sophisticated blinders that detect non-living motion (things that are moving but are not registering the same amount of IR heat) Allowing you to hide your features, as well as hyper focus on the nearest human to you.
"When ads encroach upon your territory, warn them the old fashioned way!" A camera situated on your body that tracks the concentration of advertisements in the area. If it reaches a certain point a rattlesnake like sound is created mechanically to inform those around you of your displeasure.
A set of amplified speakers that will amplify the wearer's voice proportionally to how many people are holding hands together and speaking.