How to Create a friend request system/Users system??

[eluser]flyenig[/eluser]
[quote author="bretticus" date="1254006319"]
Store Kenny's friend request in the database. When Jake logs in, display that he has a request. Let Jake accept or deny the request and store that in the database so when Kenny logs in he can see Jake's profile.

See how that works?[/quote]

Yes thats what i need help with. im having a hard time coding that out.

if i can see an example from someone that would be nice