Sarah got an idea and tapped her earpiece.
"Eve, turn on my lenses.", Sarah spoke softly.
Her vision flickered few times before it stabilized. Everything looked normal, except for additional information that was visible only to her: 'Operational: 100%, select your options…'
Sarah extended her hand in front of her and made tapping motion which landed on 'options…' which expanded to: 'environment information, living creatures, vision type, vision sharing…' She tapped on 'living creatures' and it expanded to: 'all, humans only…', Sarah tapped on 'humans only' and information was shown: 'In visible range: 162 people, in 5 m radius: 11 people… close proximity without obstacles: 5 people…'