<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Punki:
Just click their "Mail" symbol.</font>
A minor clarification: that will get their e-mail address, but not their profile - which, if they chose to fill in all the fields, contains more than the e-mail address. For the full profile, click on the card index symbol just to the left of the "mail" (envelope) symbol.