how can i train my dog to roll over?

[Chanel]

my dog is 13 weeks old and she learned the sit command when she was 9 weeks old.. now i would like to teach her a new trick, but how should i do it? i can't even make her stay. thing is, when i tell her to stay, she always move. however, she's very attentive in regards of the sit command. i am willing to do anything and spend as much time with her in order to teach her the roll over trick, seems really cool. i hope you can all help. thanks!

[clowndino]

keep working with the "stay" order until it's perfected.
command :sit. command stay! if the dog moves immediately pick her up replace her where the original command was made, repeating "stay!"
Be sure to release command: come! fairly quickly as a 13 wk old puppy has a short attention span and give alot of praise. this has worked for me over the years