What is this green " shape on some of my friends?

Question

there is a Green ( '' ) shape on some pictures in the right of the screen in friends... what are these?

Answer 1

You need to explain, please.

Edit: Oh, those are called quotes for people who have written you a testimonial. If you click on them you will see what they have written for you. If you go to one of your friends pages; on the left hand side just below your avatar it will say Write a Testimonial.