Here are the parts to turn yourself into a lively catgirl.
http://www.animenewsnetwork.com/astro-toy/2012-08-05/necomimi
http://www.crunchyroll.com/anime-news/2012/06/02/video-now-presenting-japans-pulse-controlled-cat-tail
http://www.animenewsnetwork.com/astro-toy/2012-08-05/necomimi
http://www.crunchyroll.com/anime-news/2012/06/02/video-now-presenting-japans-pulse-controlled-cat-tail