Step by step:
1. Google post images
2. Click on:
Postimages — free image hosting / image upload - this should get you to:
https://postimages.org/3. Click on
Choose images4. this should take you to your computer - I chose the file
give the bird5. Near the bottom of the screen is hotlink for forums Hotlink for forums: on the far-right side is a small icon - click on it and there will be a reply
"copied"6. go to you thread in classified and hit paste:
7. here's my picture I chose "Give the bird"
[url=https://postimages.org/]
sometimes post images will add a line or two - advertising - with a little practice you can delete the advertising if you desire.