With an introduction along the lines of ‘I’m known for having a big smile’, Alex Prescot instantly creates a warm and welcoming environment in his new one-man show ‘Cosy’, playing at Dexter Underbelly Bristo Square.   In a combination of storytelling and brilliantly improvised songs, Prescot showcases not only his musical skills and improv talents but also his natural friendly flair and style as he effortlessly talks to audience members and rewards good and funny responses wi