My two 5-week old Pekin ducks do the same - run from me when I reach into the brooder. I take them into the garden everyday, and I’ve noticed they will follow me around until they’ve gotten their treat of the day, which lately has been cut up grapes or thawed peas. They’ll go so far as to walk back into the house while I’m chopping the grapes. Once they get their prize they keep to themselves, which is I think is normal being in their teenage phase. As for making them friendly, I’m not 100% on that. I consider my Pekins pretty friendly, considering they waddled up to a pair of strange people having a proper picnic and had a sit down right on these strange women’s blankie! Without any encouragement to do so! What did I do to bring up such quackers ducks? I took them out on errands, often to get coffee with me ( for me, no coffee for duckies). I took them to my place of work (a plant nursery). They met lots of people, many of whom wanted a picture of them. At home in the brooder, some nights I held them in my lap feeding them cut up fruit with a small cup of water. Some nights I read them a children’s picture book (“The Duckling Gets w Cookie!? By Mo Willems is a fav). I think lots of treats and lots of FaceTime with duckies with get them to realize and know you’re just another unit albeit bigger piece of the flock. Talk to them, get them used to and comfortable with your voice. I’ve read that voice imprinting is a very powerful force. Let them know when you’re approaching the brooder so there’s no surprise appearances by the human. I hope this helps, or at the least, provide some clarity and guidance!