When I opened the door and saw You smiling once again I felt so lucky And so warm inside; Opened the door and saw You smiling even though The snow was blowing It's so warm inside Hey, I think I'm falling in love I guess you didn't know Hey, I think I'm losing my cool I guess it shows; But a habit of you Would be hard to give up A habit of you Would be hard to give up Yes, a habit of you A habit of you could be hard to give up When I opened the box and saw My orange birthday cake I felt like crying That's all I could do I opened the box and saw My orange birthday cake That's all that's left of Mama's birthday boy Hey, I think I'm falling in love I guess you didn't know Hey, I think I'm losing my cool I guess it shows; But a habit of you Would be hard to give up A habit of you Would be hard to give up Yes, a habit of you A habit of you could be hard to give up When I opened the door and saw You smiling back at me I felt like crying That's all I could do When I opened the door and saw You smiling back at me That's all that's left of Mama's birthday boy Hey, I think I'm falling in love I guess you didn't know Hey, I think I'm losing my cool I guess it shows; Cause a habit of you Is hard to give up Cause a habit of you Is hard to give up Cause a habit of you A habit of you can be hard to give up