7. Just Make Them Uncomfortable, They’ll Lose Interest Fast
On the surface, it’s an act relegated to the realm of uncouth children and oblivious adults. Yet, within the high-stakes world of surveillance, picking your nose is a tactic as effective as it is unglamorous. The logic is unassailable: even the most brazen of gazes will retreat in the face of a deliberate dig.

It’s human nature to avert one’s eyes from the sight and will provide the perfect smokescreen for those needing to blend into the background or break an unwanted stare. This method turns a universally frowned-upon habit into a tool of trade, proving that sometimes, the best way to go unnoticed is to do something noticeably gross.