If you have ice, pop a few in the glasses. If you don’t have any, don’t worry. The frozen fruit will keep it cool.
Remove the frozen fruit from the bag and pop in the glass.
Add 50ml of El Amo to each glass (or a good splash of you don’t have a jigger measurer). Leave the tequila to infuse with the fruits, the tame it takes to get the tonic out the fridge will be enough.