A wearable sensor measures the expansion and contraction of a person's rib cage as he/she breathes. This data is streamed to a mobile phone via bluetooth and written to an online file via PHP. The partner phone reads this file and visualizes the other person's breathing (stretch sensor) and proximity (GPS capability on a smartphone). The two people are thereby able to feel connected without conscious communication and are also made more in touch with their own breath rate and sense of spatial awareness.