Like when you're messaging or navigating throught the phone.
http://www.costco.com/Browse/Product.aspx?Prodid=11491745&search=nokia&Mo=2&cm_re=1_en-_-Top_Left_Nav-_-Top_search&lang=en-US&Nr=P_CatalogName:BC&Sp=S&N=5000043&whse=BC&Dx=mode+matchallpartial&Ntk=Text_Search&Dr=P_CatalogName:BC&Ne=4000000&D=nokia&Ntt=nokia&No=0&Ntx=mode+matchallpartial&Nty=1&topnav=&s=1
http://www.costco.com/Browse/Product.aspx?Prodid=11491745&search=nokia&Mo=2&cm_re=1_en-_-Top_Left_Nav-_-Top_search&lang=en-US&Nr=P_CatalogName:BC&Sp=S&N=5000043&whse=BC&Dx=mode+matchallpartial&Ntk=Text_Search&Dr=P_CatalogName:BC&Ne=4000000&D=nokia&Ntt=nokia&No=0&Ntx=mode+matchallpartial&Nty=1&topnav=&s=1