Welcome to LQ!
First, always install using the package manager if possible--in the post above, it looks like it might be called "Mint-Install", but look for something that says "install software" or similar. You might --eg--have Synaptic or Adept, also.
If you do install something that is not available in the package manager, then there are several methods, including compiling from source code. The "READ-ME" file typically has directions---or there will be directions on the site where you get the application.
Don't look for things to be "like Windows"----some are, and some are not.
.. the README-Directions don't work ! ... 'make install' ask for Target .. and Directory ! ... how to write those directions ? ...
Give us the specific instructions and exactly which question you don't understand. If the installer is prompting you for information, you would simply type it in. If it asks for a directory, there is usually a default shown.