@Royston_2704484 Firstly, are you using Windows or Mac? If Windows, you should see a wifi connection symbol (bottom right hand of screen?) If you click on that, you should see options for what networks you can connect to.
You need to turn your phone on and allow personal hotspot (this will be in phone settings somewhere, dependent upon phone)
You should be able to choose the phone as the wifi source.(May need a password, but trephine should tell you what it is)
