Only when breaking stacks does one's character stand up when in the crouch position. If you break your stacks up prior to throwing them you will remain in the crouch position. I generally make sure I have 3 cloudberries for each lox I am taming. If I come across a group of 3 lox, I will make 3 stacks of 9 prior to approaching them. This way one's character will not stand after throwing the cloudberries. I will then approach them crouched, with no weapons equipped, and throw my 3 stacks of 9 cloudberries around the cabinet of lox in such a way that I am pretty sure even if they wander slightly, there will be cloudberries within detection range, should they get hungry. I will then move off, making sure I am at least close enough to be able to see the acclimation heart emotes. I usually fish while I am waiting ...