It should be a little more leaves in the cup of boiled water, and it should remain a little bit longer in the water, than the usual tea. Cover cup with the small saucer.
Try it, it has interesting, mild and pleasant taste, some say it has healing effects, for sure it has nice taste. Olive tea color is very weak, it is something between green and orange-yellow. I suppose it should to be consumed with out any sugar, honey or other supplement.
Olive leaf and its extracts is being used in medicine.
Natural olive leaf and olive leaf extracts (OLE), are now marketed as anti-aging, immunostimulators, and even antibiotics. Clinical evidence has proven the blood pressure lowering effects of carefully extracted olive leaf extracts. Bioassays support its antibacterial, antifungal, and anti-inflammatory effects at a laboratory level. A liquid extract made directly from fresh olive leaves recently gained international attention when it was shown to have an antioxidant capacity almost double green tea extract and 400% higher than vitamin C.