For David Rio Toucan Mango chai mix, think Tiger Spice but a bit milder with a distinct "light" melon/mango sweetness. The directions indicate mixing each packet with 7 ounces of water. This gives a bit thinner outcome than if you add a bit of milk. I personally would opt to go light on the Toucan Mango chai mix, then include half water and half milk for an ideal cup.
Troy the Chai-Direct Chai Tasting Guy