L.R.
Perfectly normal. At home with you, she is comfortable, happy and in a familiar place, so she feels free and ready to do things on her own and amuse herself more on her own. When your husband (who is not around her all day like you are) or others are around, she is in a very slightly less familiar environment so she turns to you for additional attention. Normal at this age. Be proud that she is happy and relaxed enough at home with you that she does NOT need you to amuse her every second. But do keep on introducing new things to do, toddler-appropriate crafts, outdoor play, lots of reading to her, mommy and me groups, library story times, etc. -- keep her busy little mind stimulated. She's doing fine.