How to enter pass phrase on trezor device instead of laptop

After plugging in trezer device to my laptop, I am prompted to enter pass code from the device onto my computer. After completed I then want to access hidden wallet but I am prompted to enter passphrase on computer rather than TRESOR. I’m concerned about hackers reading keystrokes on computer and was told I could enter passphrase and possibly pass code on Tresor device itself. There is nothing that prompts me to be able to use the trezer device and I’m wondering if anyone can explain how I might do this?

Click here, enter on device