In a Rut!

Hey ladies! I had my baby girl on 10/25/16. She is perfectly healthy and happy, but here lately I feel like I'm boring her! I feel like I should be doing more but all I'm doing is feeding her, changing her, and letting her sleep. Maybe I'm just overthinking it since I'm a first time mom, but I'm not sure what to do! I love her very much and I want to ensure that she's happy. What can I do to keep her entertained?