What actors and actresses appeared in How to Do It - 2012?

The 2012 film you're referring to is likely "How to Make It in America", a comedy-drama series that aired on HBO. It ran for two seasons (2010-2011) and starred:

* Bryan Greenberg as Cam Calderon

* Victor Rasuk as René "Benny" Dominguez

* Lake Bell as Rachel

* Scott Caan as Max

* Luis Guzmán as Don Juan

* Dash Mihok as Kevin

* Eddie Kaye Thomas as Adam

The show was also known for featuring many guest stars, including:

* Kid Cudi

* Common

* Drake

* A$AP Rocky

If you are thinking of a different film titled "How to Do It" from 2012, please provide more details so I can help you find the cast.