No need for that we don't get paid around here to help.
I never had the need to adjust the font size so I went looking for an answer for this, and found Android doesn't have, at this moment, any way of changing the font size. It's a feature I suppose will be added later on. If you are having issues reading SMS/MMS etc messages then you can adjust the font size in chompsms. If it's email you can access your gmail account with the browser and zoom in there to get a better look. Other than that you can't do much with the fonts.