1. Be lost in thought less.
2. Listen to people more attentively.
3. Read 3 computer science books.

Note: Last year my resolution was to read 3 computer science books and I'm proud to say that I read 2.5 computer science books. Didn't fully reach it but 2 and a half books in a year is damn better than 0. They were: "Clean Code", "The Mythical Man-Month", and half of "Algorithms 4th Edition".