Cut the halloumi cheese into 1 inch pieces, and cut 1 lemon into slices. To make the marinate, mix together the oil, garlic and lemon juice from the second lemon. Thread the cherry tomatoes, halloumi cheese and lemon slices onto skewers, and brush all over with the marinate. Season with pepper and leave for 30 minutes while you prepare the couscous. Next, place the couscous in a large bowl. Squeeze the juice from 1 of the oranges and add to the couscous. Add the hot water, cover and leave the couscous for 10 minutes to absorb the liquids. When ready, add the zest of the second orange, chopped mint and chives, olive oil and fresh seasoning and mix well. To cook the skewers, warm up a hot plat or griddle pan and grill the halloumi skewers for 5-6 minutes, browning on all sides. When cooked, serve the halloumi skewers with the orange and mint scented couscous.