I know that on tengaged if someone adds you as there friend and you add them their name is highlighted in blue. If only one of you friends the other person it shows up as white.
However, wouldn't it be nice if for some reason you could receive some notification on tengaged when someone adds you as a friend. I sometimes wonder how many people have me as a friend and I don't have them as one. I know that I also have a few people who I've added as friends and they haven't added me.
A notification would be nice to have here on tengaged :)