In my spare time I like to go out and sit on cafés to either people-watch, read up on or play with techy things, or socialise with friends, colleagues or people from the tech scene in Copenhagen. I like to attend meet-ups and events for or by software developers. I don't find this monotonic because it's fun seeing familiar faces or meeting new people.
I'm pretty introverted, which can make it seem like I'm shy, but what it really means is that I need a little more time than most to build up enough trust to open up to other people.
One of my more pronounced traits is that I'm fairly analytical, in the sense that I try hard to understand what people say in the most positive possible way. I think that people are generally good, but can also be clumsy or say ambiguous or ungraceful things even though they mean well. So I try to mentally compensate. Communication is just hard, sometimes.
I am also sort of pretend OK-good at taking photos.
I don't read a lot of fiction and I won't bore you with what work-related material I've been into recently. Instead I'll mention that I enjoy reading pop science literature during my morning commute. I've been through A Grand Design (Hawking), A Universe From Nothing (Krauss), Of Warpings in Space and Time (Wiggins), and I'm currently reading Time Reborn (Smolin). These books all blew my mind in each their own way.
Of what fiction I have read, I did enjoy Jennifer Government (Max Berry) and Madame Terror (Jan Guillou) the most.
As for music, I listen to a lot of different bands and artists: Phillip Glass, Two Steps from Hell, Helios, Daft Punk, Linkin Park, Tool, Disturbed, Shape of Despair. I also enjoy listening to soundtracks.
I enjoy thinking about the cosmos, how it all began, multiple dimensions, quantum mechanics, the speed of light, and gravity. Stuff like that. It is mostly philosophical, though.
I also think about other philosophical things; currently concluding that I am a hard determinist and atheist.