Limoncello Gin Cocktail Rules for Summer Drinks :) 1. It can't be too sweet. 2. It must be refreshing. (A follow up to rule No. 1!) 3. It can't be a shorty. We're thirsty in the summer so it's gotta be a long drink. Sorry Martini. 4. It can't be too strong. Drinking alcohol in the heat can be dangerous so it needs to stay on the softer side.