These are blackberries... Pretty weed-like, usually... You can probably just shove your cuttings in some dirt, give them good light & lots of water.. and probably have 50% survival rate.. If you use a rooting hormone, or some sort of plastic covering over the top to keep humidity in, you'll just increase your chances...
A 6-7" cutting is about all you need.. A couple nodes go under the soil, a couple above
A lot easier to propagate than grapes
I've done it... They look pretty sad for about two weeks but then they come around