1. Enter the PS Store
2. Scroll down to games
3. Scroll to the PS + section
4. Go to either the Featured or Free Games sub section under that
5. Scroll to the right to see what is available and hihglight was you think looks cool hit X
6. A screen will come up with info on that game, maybe some screen shots and trailers you can click on with X to view
7. Highlight under the game with the price or FREE for PS+ members click X and follow on screen directions
Hope that helps!