Harvest Moon: Friends of Mineral Town Tips

Harvest Sprites
To make friends with Harvest Sprites, give them flour everyday, average 2 flour equals to 1 heart. The best is giving them on their birthdays.
If they have 3 hearts and more with you, it means you are friends with them.
After making friends with them, you can ask them to water your crops, harvest your crops, or take care of your animals (not including dog and horse).
You can make them faster finish the jobs by training them when they are in their house, though you can only train them once a day.