How do I cope with hijab in ordinary places?

I wear hijab, and I've been wearing it since I was 12. I'm 14 now, and I want to start wearing it more modestly (before, I used to roll up the sleeves, wear sort-of tight clothes with it, etc). How do I cope with it now? Like when the door-bell rings, or when I walk pass the window, or go out in my back garden, etc? Thanks! :)