How to show image when we post a comment?

When I post a comment for a post or page i开发者_开发问答n WordPress by default it shows a Gravatar image. I don't want this. Is there any way to upload an image when a user posts a comment in WordPress? I need to give people a way to upload their own image when posting a comment.

those images are not uploaded or set by wordpress, its another service called gravatar you sign up with that service then on any blog that is using the gravatar feature, the image is linked to from there site.

Yes, you can upload it by using Gravtar, for that u need a wordpress login username and password. And it is free to register. Enjoy Stack Overflow.