As with food, the thing to consider is the amount of carbohydrates in what you drink.
You do not say which type of diabetes you have.
If type 1, you will need to consider your insulin needs.
If type 2, you are likely to find drinks with lots of carbs (e,g hot chocolate), will raise you BG. However, we are all different, so the best way to work out if you can eat or drink something is to measure your BG, drink, wait 2 hours and test again. If you BG risestoo much, it is best to avoid. But, there are many things which can affect your BG so you may want to repeat your experiments twice to make sure.
Similar rules apply with with alcoholic drinks but, alcohol may lower your BG for the next 12 hours or so as your liver sorts out the poison from the alcohol instead of dripping a base level of glucose into your blood.