I don't mean back hug from guy only, I mean from the friend/s I love~

Sometimes I do wonder how a back hug from my love ones will feel like~
Receiving a back hug when you feel sad,definitely it's comforting~
Receiving a back hug when you feel happy, made you feel happier and soothing...
Receiving a back hug when you feel Frustrated, definitely it may calm you down~