How do I add gifs as comments on Tumblr reblogs?

Do I must use the particular URL or should i use photographs on my personal computer (If Allow me to, how should i do this;; )

Haha, place the noob.

You spend less the gif onto your computer then people add a strong image.There ought to be a position to click on to add.I point it’s above the ideal side belonging to the box you key in.