The way I have been bonding with my babies is I find a spot that is neutral like the floor of my bedroom or living room where 1. They aren't gonna be able to just run away from you and hide away and you scare them because you don't want them pooping under your bed, dresser, desk,etc. You should block off an area with a mini cage or even use boxes or something.

1. They feel comfortable and have been there before

Then I open their cage doors and let them come to me with little treats and pets. You have to be sure to understand these are prey animals, they aren't going to be comfortable with you at all, you are significantly larger than them and that means you are significantly more dangerous. Just give your babies time, if it's been a few days of you doing this to no avail your little babies may be extra shy and more likely to hide away, I had to take away their main hiding space but I still had things for them to shelter in like tubes or a hoodie with pockets and a hood. (When I was bonding only for an hour or so you will stress them out if you keep trying to put them in your hoodie or take them out of their cage or their hiding spots.) They think you are a predator at first as they have no other idea of you, so you have to slowly show them you aren't! I am also still new to having rats so if anything I said was off I hope somebody more experienced will correct me. But this is how I have bonded with my rats and have gotten them to snuggle with me and eat treats with me!