Skills

Skill is basically talents what Nano can do at his/her Jobs.

Cooking
To earn it you had to keep on cooking food until the bar above goes to Empty to Full or just read the book until the bar goes full.

Athletic
To earn Athletic skill, get the Stereo and do Work Out. Just like the Cooking skill, you got to wait the bar to go Empty to Full.

Logic
You can earn Logic skill by doing Stargaze to the Telescope or just read the book.

Mechanical
You can earn Mechanical skill by doing repairing.

Work
Sometime when Nano go to work, you had to to pick a choice. Some choices you will earn or lose some skill point depending on the job Nano has.