KG Change This Heart is a nice font style that will help you give a thin, casual look to any text string.
To install the KG Change This Heart font simply unzip the archive and put the font file (.ttf, .otf) into /Library/Fonts . KG Change This Heart font integrates quickly into your system and you can easily access the custom glyphs though any text editing application.
Mac OS X comes with pre installed font styles and KG Change This Heart will simply be added to your pre existent library. The process is managed through the Font Book application, where you can easily browse and preview your currently installed fonts.
To learn more about dealing with the Font Book application you can easily access the Apple support page HERE.
NOTE: KG Change This Heart font is free for personal use only. For commercial use a license must be purchased and you can find details in the included Read Me file.