Do you know which model? Does it have the chain stitch function? Are there any additional feet for the machine? They are easy to thread. There are many different settings and stitches depending on your project.
You can do a narrow overlock and serge fabrics before washing so they don’t fray. You can do pin tucks, add lace, zippers, and make belt loops or straps. Check the BL site for project videos and How-to information.
Be sure to download a copy of the manual if available.