You can use the shortcode funtions in your template files by calling the functions directly.
As an example, if the [testing] shortcode was set to call the show_testing() function, then you could just add
<?php echo show_testing(); ?>
to your template file.
To find out what the function is for the [wp-like-locker] shortcode you can do a search through the source code of the plugin to find where the shortcode is registered. Most good text editors will let you do a global search, so search for 'wp-like-locker' and you'll see the results. If you haven't got a text editor that can do that you can look through the code manually and search for the register_shortcode() function for that shortcode.