All those that have americanised spelling possibilities. I don't know what they are until someone points them out to me as to me I am spelling them normally.
I can't remember which ones I say strangely as I only really notice when someone points them out. The one most people think is odd and comment most on though is the way I say only. Instead of saying ownly I sort of slur it and say ounly. It is difficult to demonstrate without the possibility of speech.