Sky diving
It is the most exhilarating sport/recreational activities on the face of the Earth. Just imagine falling at speed of 302 km an hour, it is absolutely amazing.
Have sex
Pretty self-explanatory. The main function of all species is reproducing, and how do you achieve that? By having sexual intercourse with the opposite species.
Publish a paper
It doesn't have to be a book or a major research paper, it can be anything from letters to the editor or a joke. They say the only way to be immortal is to be engraved in literature, whatever that means.
Do some thing nice for another person
Happiness goes round and round, people feel happier when they make other people happy, it is one of the things that makes us human.
Travel to other places
Do not spend all your life living inside a cubic cell, there are much more beautiful and exciting things in the world, travel to Europe, China, India, and experience different cultures and traditions.
Swim in a sea
They say you realizes how insignificant you are when you look at the boundless sea. The sea in ancient myth always represents the forces of nature, it is refreshing to experience it first hand.
Smoke weed?
Marijuana induces hallucination, even though I personally never smoked one, it would be great just to experience the power of drugs. I am not advocating the use of marijuana; I know it is bad for the body and such and such. But it would be a waste to pass by life and never experience the power of drugs.
Post a video of you singing your favourite song on You Tube
That's the hype nowadays, everybody is doing their own version of their favourite song. Who knows, maybe someday a Hollywood record company might notice it and make you a star.
Swim in money
Withdraw a lot of $10 bills and pile them up on the living room floor, and swim butt naked in it. Sounds appealing? Not really? Yeah, it is disgusting, but what the heck.
Have a terrible hair day
Mess up your hair intentionally that your hair is beyond “bad”, by the way really sorry if you have no hair. Everybody fears waking up in the morning and their hair is messed up, why not face that fear?