There is not a rule as for how women are, and if it were, I wouldn't be able to explain it here, because soemone could be offended, but I have been to Venezuela only as a transfer in my trip to Peru, and I met there a venezuelan girl who I enjoyed several walks with and some parties in Cuzco. She was very nice and open, at least as much as spaniard girls.
I have also met several other venezuela girls in Madrid, too. Chatting is easy. I wouldn't say it's easy to intimate however, but it's much, much easier than with the spaniards. BTW, I don't consider that latino or venezuelan girls are too liberal but that spanish are extremely conservative. I met a guy from Angola here in Prague, and he said it was most of the times possible to get a one night stand here in the first date, but he was in Spain for three months and couldn't make it.
Relax, you won't be alone, unless for the language barrier, work it out bravely but don't hope too much, thus you won't be deceived.
BTW, they are said to be very good lovers generally, and according to my short experience, they are. They are said to be very beautiful (many world misses are from Venezuela), but I wouldn't agree, from my point of view it's not so much.