How to Make a Jam Session Drink

I love the idea of having something that you can enjoy over a long period of time and it doesn't have to have like such a huge wallop. Let me bring it back to the jam session drink really quick. How do you make fresh watermelon juice? I cut it up, I throw it in the blender and then I strain it super, super easy. What's another drink you would have on a hot summer day? Another one I just love is just like you have a bottle of bubbles in your fridge and you add some sort of like vermouth or you add a little bit of a morrow. It's just simple, it's delicious, it's a crowd pleaser