I looked up specific words using Google trends to see what was popular and what was not so popular. Here is my results. These are the type of words I’ll consider using in my portfolio site.
Ux design started off so well. It’s constantly up and down. It has recently fell in popularity.
Interaction design trend is like a rollercoster.
App design has struggled to pick up in the last few months.
Web design started off high and has gradually fallen.