Gifs are just images. So you will use the IMG BB Code which looks like this [img.]Image URL here[./img](Remove the . from the code and make sure you use the forward slash (/) You will need to get the URL of the Gif. Do this by finding a gif on google images or something and copy it. If you are on a mobile device you will need to use the Bitly URL shortener. Link here. Once you shorten the link it is easy. Just insert the shortened URL into the IMG BB Code Should look like this http://bit.ly/1baqnGF[./img] ( without the . in the last bracket ) Shortening the URL via Bitly is not necessary for PC users. In the end you should get [img]http://assets0.ordienetworks.com/misc/Windshield%20Wiper%20Cat%20Surprise.gif That was just the gif I used for this example.
Well done Seeings how your on iPhone I recommend keeping your shortened URL gifs in your notes or something for quick use Saves all the steps if you want to re-use a gif