First of all, you need to open MSN messenger on your personal computer or laptop.
After that you have to type your Hotmail ID and password to sign in with Hotmail messenger. In case, you don't have a Windows Live ID, then click on Sign up located on the screen, and make your account.
Once you get signed in with Hotmail messenger, look for the online friends in your contact list.
Point your cursor on the contact with whom you want to start a chat. A drop down menu will appear besides the contact name, select ‘send IM’ from the menu. You can also simply click twice on the name of the contact to start your chat.
You will see a chat window opened on the screen.
Write any message in the chat box, say ‘Hi’ for instance.
Once you have finished writing your message, press the Enter button on key board to send the typed message.
Now enjoy unlimited free online conversation with your friends and family on Hotmail messenger.