Welcome, welcome @laura-aome!! So glad to have you on board with Lenspiration! 🙂
Blurred backgrounds are the best! Personally, one of my favorite techniques to use! The link that Hannah gave you for the lesson on background blur is a fantastic place to answer your specific question.
I did want to mention, if you know terms like “Aperture”, “ISO” or other settings and terms like that but you’re not sure how to utilize them, the Foundations Course is a good place to start. It teaches, well, the foundations of photography! 🙂 Once you’ve walked through that course, the Explore Course builds on that knowledge and discusses how to shoot in Full Manual, as well as learning various effects and techniques that you can use in photography.
Both of these courses are free with your membership, and can be found on your Membership Portal under the “Member Features” section!
God bless you as you grow in your photography! It’s a great gift.