Do not do anything but be yourself! Kids sense fakeness faster then adults.
Let them have alone time together. Movies, outings and such.
After a while explain to her, you are not trying to replace her mother, but you love her Dad and would like to be friends with her. But let her know you want her to have her relationship with her father, and you will respect that they need time alone together!
As long as you give her time to learn to trust you and give her free time with her Dad to build a relationship separate from you, she will be ok. Then do not judge, or nag on him about her. Respect that this is his daughter until you and her have a relationship together.
at 4:29 PM on Nov. 12, 2008