So cute! I also suspect the blue one is a boy, and the green is a girl.
Finger taming is easier if you find something they like to eat, like millet or lettuce. Hold it in your hand so they need to get on your finger to eat. When they get close, gently push against them and up, and they will step up without even realizing they're on your hand.
Mine loved corn, lettuce, chicken (!), peas, mashed potatoes, and pretty much anything else I ate. We used to invite them to sit on the rim of the plates and eat along with us. Which they all did!