That's quite an assortment of personalities you've got there ^^
Squeaking is their form of disagreement. A kind of protest. Sometimes, you'll get rats that don't like to be picked up at all, and that's just them. However, you can make it better for them by not grabbing, but by scooping (which is the preferred method) and supporting their bottoms. You can do this all throughout playtime so they get used to it, and give them treats afterward so they associate being picked up a good thing. If they still squeak, there's not really much you can do but make it more comfortable for them. Sometimes you just HAVE to pick them up. If they get into trouble, or you have to put them back in the cage quickly.
There is an alternate method to picking them up, and that is training them to climb up your arm and onto your shoulder. That way, you don't have to pick them up and it's a lot more comfortable for them. Both of my rats do this and it's easier for them since they aren't fond of me picking them up all the time. I just got them used to riding on my shoulder and they started climbing up my arm eventually. They seem to enjoy being on my shoulder too ^^ They're closer to me that way.
The rats will slowly get used to you. As long as you interact with all of them equally, then they will come around eventually. It may take longer for some. Mine were licking my fingers by the week's end. It may take longer or shorter, depending on your rats.
I hope I helped some ^^ Good luck to you and your rats! :3
Squeaking is their form of disagreement. A kind of protest. Sometimes, you'll get rats that don't like to be picked up at all, and that's just them. However, you can make it better for them by not grabbing, but by scooping (which is the preferred method) and supporting their bottoms. You can do this all throughout playtime so they get used to it, and give them treats afterward so they associate being picked up a good thing. If they still squeak, there's not really much you can do but make it more comfortable for them. Sometimes you just HAVE to pick them up. If they get into trouble, or you have to put them back in the cage quickly.
There is an alternate method to picking them up, and that is training them to climb up your arm and onto your shoulder. That way, you don't have to pick them up and it's a lot more comfortable for them. Both of my rats do this and it's easier for them since they aren't fond of me picking them up all the time. I just got them used to riding on my shoulder and they started climbing up my arm eventually. They seem to enjoy being on my shoulder too ^^ They're closer to me that way.
The rats will slowly get used to you. As long as you interact with all of them equally, then they will come around eventually. It may take longer for some. Mine were licking my fingers by the week's end. It may take longer or shorter, depending on your rats.
I hope I helped some ^^ Good luck to you and your rats! :3