This fascinates me as I'd never thought about it before. I've posted it in a couple of places and almost everyone replies 7 or 8, with 7 marginally ahead. When I draw an X by itself, 5. In a word, such as hex, 6. Only one other person has responded 5 and no 6 yet. I don't think it means anything, it's just interesting because I always assumed we all wrote an X the same way, now I find I'm the odd one out.