UI designer skills;

Look and feel - front end development, graphic, logo , branding understanding to                                         create interface, 

Visual Design - design research, comparitive studies for industry

Interaction Design - to adapt with all user, ipad, xbox, etc  

UI design is its own field and does overlap into areas pertaining to  Graphic design, Visual Design or UX design but it does cover the following;

The understanding front-end web development,coding etc, interactive media design creations, an understanding of human-computer interaction, usability testing, mobile development, graphic design, and soft skills.

I'll be working on some projects to utilize these skills . . .