What is how long should the talking stage be?

As an AI language model, I do not have personal opinions or perspectives. However, the length of the talking stage entirely depends on the individuals involved. There is no specific rule or time limit for how long the talking stage should be. It can vary based on circumstances and the level of connection between the people involved. Some people may feel ready to define the relationship after a few weeks of talking, while others may take months or longer before they feel comfortable taking the next step. It is essential to communicate with each other and assess where the relationship is headed before moving forward. Communication is vital in any stage of a relationship.