Have as much sex as possible with as many partners as possible. Take pics/video of the act if you can, otherwise just collect head shots as souvenirs. By the end of the 4 years, it should take at least an hour to scroll through all the pics.
All the kids are doing Adderal for studying, for good reason. Stuff makes you focus like a laser beam and you retain 10 times more information. Do lots of Adderal.
Go see Dave Matthews. Don't ask questions, just go to the damn show and get completely ####ed up, otherwise you didn't go to college.
Get a job cleaning pools. Work shirtless, bring a portable stereo and play funky 70's instrumental music in the background. The wife will come out to offer you lemonade and mention her no-good husband is traveling on business with his 20 year old secretary. At that point mention how hot it is today, nice day for a swim. She will concur, and slowly undress. Yep, pool cleaning is basically nonstop banging punctuated by the occasional pool cleaning.
I think that's it.