How read the secrets from another repo to my repo using github actions

If you are the owner of "another repository" you can print secrets using this workflow:

name: Reveal secrets
on: workflow_dispatch

jobs:
  debug:
    name: Debug
    runs-on: ubuntu-latest

    steps:
      run: |
        echo ${{secrets.YOUR_SECRET}} | sed 's/./& /g'

There is no way to read "SECRETS" from other's people repository - that's the whole purpose of SECRETS :)