Corner sofa guide - dont know if i need left or right?

I like a corner sofa in Argos and want one that when im sitting on it the corner end is on my left but the picture of the right hand corner one is showing this can any one help i dont know if Argos mean right hand side as in u sitting at ur computer looking at it or sitting on it lol - hope u understand what i mean (ps its the Dylan Right Hand Corner Group on Argos. Co.uk - that i am looking at in case u want to check it out)