I thought everyone could blur their vision, you just don't focus on anything.
not to blur really, but i can dislodge left eye vision from the right eye if i try hard enough. Something i figured out when i was a small child but haven't done in ages. Must give it a try, now that you reminded me. Quite an odd sensation.
Goosebumps - easily done, just the thought of touching something loathsome like polyester will do it.