Be respectful to your nanny. She is the one who is taking care of your precious child. She is doing a job/service as same as others. Avoid extra work that have not mentioned in the contract and also respect her privacy time if she is a live in nanny. Appreciate her good work and do not be offensive in such case something goes wrong. You can appreciate your nanny's work by giving bonuses or you can let your nanny knows she is doing well by doing simple things. Next time you go to mall buy something she likes to eat, when you buy fruits for your family buy your nanny's favorite fruits too. Once in a while prepare meals that she likes. You can buy a gift also. Do not forget to buy one for Xmas.
Communicate with her. Be open and listen to her suggestions as well. Your nanny may provide the reliable answer for any issue that related to your child. Do the payments at the right time. If she worked extra be fair! Do not forget to pay extra. Appreciate your nanny's extra work by both orally and doing extra payments as well.
Schedule a discussion time daily or weekly with your nanny. This is your time to talk about any issues. Do not speak in disrespectful manner if there are any issues. Discussion time will allow you to plan the schedule for next day/week with your nanny. Why not take dinner with her together? Occasionally you can ask from your nanny to join to dinner with her family as well. Invite your nanny to come to your child's birthday party. When you go a family trip does not leave her behind. In summary, you should protect and improve your nanny's satisfaction about working with your family.
If you are living in Canada and looking to hire a nanny, Visit weneedananny.ca where you can find huge amount of nannies who are registered with.