Open your chat.
- Just Go to your profile or any other profile or any official page you want to use as an emotion or want to use the image in Facebook chat.
- See the url and copy the username or if there is no username specified then copy the profile id. For example https://www.facebook.com/HackerIdeas. From this url you need to copy HackerIdeas
- Just paste this in chat window within double brackets such as [[HackerIdeas]] and send it to your friend then the profile id associated with the username or profile id will show in chat box.