This gives a list of every character in the same location. It is also the same page that will appear when you click on a character's orange link from the events page (but only for that character or those characters in the exchange)
The icons are as follow:
http://www.cantr.net/graphics/cantr/pictures/button_small_char_happy.gif - Description: Will take you to a description of the person, with some vital statistics (you get to see less about another character than you do your own) You can also change the name you know the character by after clicking this icon.
http://www.cantr.net/graphics/cantr/pictures/button_small_talk.gif - Talk: Will allow you to talk to a person. What you say will only be heard by that character (but other characters in the same location will see you saying something to that particular character)
http://www.cantr.net/graphics/cantr/pictures/button_small_pointat.png - Point: Every character in the same place will see you point at that particular character
http://www.cantr.net/graphics/cantr/pictures/button_small_help.gif - Help: Your character will help that person in their attempt to drag.
http://www.cantr.net/graphics/cantr/pictures/button_small_drag.gif - Drag: Choose a location (building or vehicle) and you will start to drag that character there (not an option if your character is in the middle of a project - stop your participation first).
http://www.cantr.net/graphics/cantr/pictures/button_small_hit.gif - Hit: Choose a weapon and how much force you want to use and your character will attack that character