Consumption smoothing in RBC Model
Have you tried solving the maximization problem? Normally you do this taking into account some market clearing condition or budget constraint and you should be able to solve for equilibrium prices to get future consumption as a function of present consumption. Consumption smoothing will simply show the path of consumption. 

Getting this equation you can show how consumption varies for different levels of $ \gamma $ (in your case = 0 and = 1)