Hello George, from NW side of Chicago right by O'hare airport.
The easy way to do attach a photo while on a computer is if you look below the text box you are typing in, on the left side it says
"+ Attachments and other options". If you click on that, it lets you attach some photos but only at the end of your post. After posting one, look below it & there is something to click on to attach another. If the photos are too big, you have to resize them.