Inquisitive mind: You observe others to understand them better, you can spot a fake just by they're habits and speech patterns. You watch your future victims closely observing they're pattern's, personality, and even habits all to prepare to the killer. You learn everything about others 100% faster than others who don't have a inquisitive mind. You will always notice minor details about others even in a crime scene for example a spec of blood. :Passive skill.
CQC/ Close quarters combat Level1: You know how to fight more efficiently than others, you gain basic techniques like how to throw a basic punch more efficiently than others with even more strength behind it. Your attacks do 5% more damage to others due to your training, you even know some weak points to strike to maximize the damage you will do. Gain a 33.3% bonus to dexterity.
Hacking LevelMax: You can hack almost anything provided you use the right technique, or the firewalls are not to strong otherwise you may fail.
Knife wielding level1: You know how to hack to use a knife moderately better than others. You understand where weak points are and even arteries to guarantee a kill. Aswell as how to prepare ingredients for cooking that need to be chopped up. 25% dexterity while wielding a knife.