Informal conversation "classes" English/Portuguese (Lisbon)

Hi there InterNations Lisbon,
Am looking for someone to help me improve my Portuguese! I was thinking along the lines of meeting up once a week for a beer (or whatever) for me to practice Portuguese and to help you practice your English ... If there's enough interest maybe we could get a small group going - the more the merrier!
Look forward to hearing from you, Tara