I did this. When I was travelling in Australia in a year off from university at Harvard, I travelled for eight months - 5 months in Australia after 3 months in New Zealand. In Australia, I bought a small congo drum. I carried it around on my backpack, I busked at least once to get money. I played my drum for the crowds in a public place.
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I feel like this will help me boost my confidence and come out of my shell a little more
I will take my Guitar and sing in one of the cities in Germany whilst I live there, all money will be donated to Christian Aid and Macmillan Cancer
Climb Mount Kilimanjaro for charity by getting people to sponsor me.
What better way to overcome stage fright than sing in public?