Week 8: Something Interactive?

My goal is to make a 'friendly hat' opened to public.

1. Goal: to encourage interactivity when people needs any 'answer.'

2. Action: Tapping the visor which has a switch inside. When the switch is triggered, the hat shows either 'symbols' or 'icons'. Shutting off your iPod, also.

3. Environment: any public area such as subway platform or park.

4. Sensing: this is the part I am confused with 'action'