WARNING - I will NOT be held responsible for any damages the methods shown in this video may cause to yours or someone else's computer, hardware, software, and/or data, including loss of use of such devices and/or loss of data and/or loss of profits from the resulting inability to use such devices and data. Any information or program you choose to put into use from this video is done AT YOUR OWN RISK. As a precaution, I recommend backing up any irrecoverable data before practicing any of the methods shown in this video.
This video will show you how to add friends to your Steam friends list. In order to SEND out friend requests in Steam, you will have had to have made a purchase THROUGH your Steam account (having paid the Valve corporation money for a product or service - having received a gift copy of a game does not apply, nor does having activated a product key through Steam apply). Even if you do NOT meet the requirements to send out friend requests, you can still RECEIVE and accept friend requests from those who DO meet that requirement (essentially you can receive friend requests from those who have made purchase(s) through Steam in the past, and should you accept this friend request, you will appear on the other party's friends list and they will appear on your friends list). You do not meet this requirement if, when trying to add a friend in Steam, you are told:
Add a Friend...
Your account does not meet the requirements to use this feature.
Visit Steam Support for more information.
In this case, it is recommended that you apply the workaround fix of having someone who does meet that requirement send you a friend request instead. ALL users wishing to use the Steam friends list will have to have Steam Community IDs, which is an additional account to your initial Steam account (it, like a Steam account, is free to sign up, register, and use). If you cannot find your friend's Steam ID, handle, or nickname through the Add a Friend function of the Steam friends list, chances are your friend does not have a Steam Community ID. 0:02:30 will show you how to create this Steam Community ID so that your account can be found by others and so that they can send you friend requests through Steam. Should Steam users appear on each other's friends list, they can know when the other party is online, what game they are playing, they can join each other's multiplayer game in progress, they can trade Steam items, they can send each other Steam gifts, they can message each other (chat text), they can use the Call function (voice over IP), etc.