Paste the product wallpapers are the traditional form of wallcoverings which expand on contact with moisture and adhesives. You cannot paste the wall as the appropriate time must be given once a your adhesive has been applied.
With sufficient time taken and all hanging instructions followed on the roll label hanging your wallpapering results will be as expected.
Are you a novice at decorating? Don't be put off with the traditional method, its all about the practice!