If you talk of being (or putting yourself) in another person’s shoes, this means you imagine that you are in that person’s situation or predicament, so you can understand what they must be going through.
Let’s see some examples :
– If I were in your shoes, I’d ask for at least another $200 a month.
– I can’t even think of putting myself in your shoes, your life is a mess, man!
– You have to put yourself in her shoes and understand her as it should.