Calum: He would sneak up behind you and wrap his arms around your waist making you jump but then relax when you realized it was him. You'd spin around and wrap your arms around him in return.
Ashton: He would squeeze the life out of you and pick you up in a bear hug then you'd try to do the same but miserably fail. You never learned though and still did it every time and you both laugh about it every time.
Luke: He would wrap his arms around you tightly and not let go just resting his head on top of yours. Your face pressed in his chest. God he's so tall.
Mike: You would wrap your arms around his neck and his would be around your waist. You would get on your tippy-toes to bury your head in his neck and leave a small kiss on his collarbone and he would kiss your shoulder and then your forehead and break apart.