Combine oats, milk, water, salt, and cinnamon in a medium saucepan. Bring to a boil, then reduce heat to low. Simmer uncovered for 3 to 5 minutes until thickened, stirring occasionally. Remove from heat and let cool slightly. Divide equally between two bowls. Drizzle each serving with 1/2 teaspoon honey. Add additional desired toppings and serve.