If you want to learn about your neighbors, just zoom out to the world map view and click on a town. A series of options will appear around it. A banner containing the player information is displayed just below these shortcuts. Click on a player name to open their ingame profile. To find a player just by their name, open the rankings window using the "Rankings" button located at the top right of the game interface. Type the first letters of the player's name in the "Search by name" search field, located below the player name column of the ranking. A list containing the player name you're looking for should pop up. Select the name and click on "OK" button near the search field. The player should then be highlighted in the rankings. Finally, click on the player name to open their profile window.