Well actually two methods are highly recommended especially when I'm lost. No.1, it is like making a phone call. You know I need to get some help from my friends , relatives and parents. I need to listen to their advices when I am lost. No.2, it is all about the APPs, for example, the Google App. I would try to use it to find my way back and to find some solutions from the App.you know. I mean it can be very important to me . So these two ways are highly recommended to me. That is it