Instructions
Launch "Trackmania Nations Forever," and log in to your current game profile.
Click to select ̶0;Play Online̶1; from the left pane options found on the main menu. Follow all other on-screen instructions, such as selecting the country you wish to compete against.
Click ̶0;Join̶1; to enter the match in question.
Press the ̶0;Space Bar" on your keyboard to trigger the chat window, which appears toward the bottom of the game screen.
Type your desired message for others to see, and then press ̶0;Enter̶1; to submit it.