When learning a new language, I often take long walks where I speak the language to myself and have long conversations with an imaginary person. It amuses me while I walk and replaces listening to music. I do this when I have enough vocabulary and structure to speak about a specific situation. It allows me to practice the structures and vocabulary that I need in a stress-free environment. In fact, I just returned from a 60-minute walk where I spoke Portuguese most of the time.