Towards implicit interaction by using wearable interaction device sensors for more than one task

User interaction and context awareness are key issues in today's wearable computing research. Context-aware wearable devices typically use a multitude of special purpose sensors for this. In this paper, we show for a simple test case that even simple sensors in a wearable human computer interaction device can be used for robust context detection. Furthermore, we describe in detail the recognition of different activities and discuss the results.