can I take softwood cuttings from Laurel to make a hedge?
Semi-ripe is recommended by the RHS:
Laurel is easy to propagate from cuttings though, so providing you remove a lot of the leaf area from softwood cuttings and keep them out of direct sun to limit water loss, I think they'll likely take.
Easy. As Bob says take cuttings as usual, cutting below a leaf bud, pot 5 cuttings in a 5 inch pot, water, cover in a plastic bag and they will root in 4-5 weeks. Keep the plants out of full sun and plant the rooted cuttings in the autumn.