Make funny faces and have fun decorating!
Usually, at purikura machines, you take six photos. For about two of them, my friends and I just smile and do a pose. For the other four, we do funny poses or make faces that make us laugh. The best part of the experience is decorating the photos with comments, drawings and glitters. We can even change our hair and eye color and put glasses and headbands on our heads.
I take purikura with my friends and relatives (especially younger children), because it is fun decorating and having small pictures/stickers for memory. I definitely recommend taking it with whomever you met or are traveling with! It will be a sticker that you can stick on your phone, schedule book, etc.