Learning how to use LabVIEW is best done by actually using LabVIEW. Reading or hearing lectures can be helpful at first, but actually starting a LabVIEW project from scratch, designing a front panel and block diagram, and figuring out the steps and logic required to perform a task is how you will really learn LabVIEW.
Below are two projects. Read through the description and design requirements of each project, and then choose one project to work on. If you have time, do both.