The answer is no. On the moon, there is no atmosphere, which means there is no air pressure. When you use a straw to sip a drink, you create a partial vacuum inside the straw by sucking on it. The atmospheric pressure outside the straw then pushes the liquid up into it. Since there is no atmosphere on the moon, there is no pressure difference to push the liquid up the straw. Therefore, you would not be able to use a straw to sip a drink on the moon.
