Wash the lemon and orange. Cut half an orange into slices for decoration. Chill green tea with tropical fruits. Prepare a zester and a citrus juicer. Take out two glasses with thick walls and bottoms.
Prepare citrus fruits for lemonade. Remove the zest from the orange and lemon with a grater, and squeeze the juice from the pulp. Divide the juice and zest between two glasses and stir with a cocktail straw.
Make lemonade from lemon and orange tea. Place 3 ice cubes in glasses and fill glasses to the top with cold green tea. Add cocktail straws.
Lightly wet the rim of the glass with water and sprinkle with ground cinnamon, then cut the orange slices into the center and place them on the rim of the glasses.