The field of Data Science is currently on fire. Many people want to work on something related to it. But what does it mean to be working in this field? I am going to show you a part of my daily work as a Machine Learning researcher. Specifically, how do you approach a research paper and implement the described algorithm? In this talk, I will share practical tips and advice I collected during my years in academia and the industry. I will present examples how they can be applied on deep learning algorithms.