You click their username (which is in blue) which should take you to their profile page. Under their description (I see you have a long one), there are 3 mini tabs; one with a sticky note, one with a board, and one with a trophy cup. The sticky note represents the messages other people posted on your profile. It should be the one open when you click their profile. The board represents their recent games. The trophy represents the trophies they have received
Does this answer your question?
How do you view someone's profile using this new GUI?