Roxy's New Doggie Door

We got a doggie door installed in our screen door so Roxy can go in and out as she pleases. Too bad the only one that uses it is Maya. Roxy is afraid of it and won't go out unless we push her out the door. We have been trying for several days to teach Roxy to go out on her own. Now Maya copies us and grabs Roxy by the collar and says "Mon Ro-he" (C'mon Roxy) and leads her to the door. Then she pushes the door open for Roxy and she says "pus" (push) and tries to help her through the door. Roxy still needs a push in the butt before she will go. What a cute little teacher Maya is.