Don't worry. There are many guys out there more than willing to show you how to Punta. Just go to Wet Willies on Wednesday night. A buddy of mine jokingly says Punta translates to "dry hump a tourist"
It is a very high energy, rump shaking, hip grinding dance that takes its roots from courtship and fertility dances from African countries and is big among the Garifuna culture and all of Belize.
Just get out there and shake your booty and it will be all good as they say : ) !