1. Put in cup or shaker (like a cocktail shaker) - add the entire packet
2. Add 100cc of water, soy milk, or milk
3. If a shaker - shake well (you can add ice)
4. If a cup - stir quickly so that there are no lumps
Apparently you should aim to drink one or two sachets a day. If you want, you can heat it in the microwave (timings in the image), try not to overheat as it will make things separate and remember to use a microwave-safe cup.