Become the bringer of wonderful things. Live mealworms will make you the best thing on earth to those chicks. Stick to a routine, bring good things the same time and in the same container every single time. I reccomend a dixie cup, it will become your "chicken whistle" later. Sit with them on their level and let them explore you so they know you aren't scary. Again do this on a routine, you can mix mealworms and explore the human time together then they'll look forward to being with you "and your worms" instead of thinking you're going to eat them.