you actually can eat it, providing you buy salvia leaves. So dont go mis-informing peoiple. If you buy extract then yes, you have to smoke it. If you buy leaves you can squish them up into a ball (called a "quid") and then chew it up slowly, whilst keeping the leaves and the juices in your mouth and swishing them about. This gives you less of a fast acting high, but it lasts for longer and is generally less intense.