For breakfast, have a home-made hot drink. The choices normally include coffee, hot chocolate or "agua de panela". The latter is a drink prepared with panela dried cane juice, sometimes with cinnamon and cloves, which gives it a special taste. In Bogotá and the region around, is a custom to use cheese along with the drink, in a way that small pieces of cheese are put into the cup and then after they are melt, you can use a spoon to pick them up and eat it like a soup. Hot chocolate is drunk in the same way.
Colombia's national alcoholic beverage, Aguardiente A.K.A. guaro, tastes strongly of anise, and is typically bought by the bottle or half bottle or a quarter. People usually drink it in shots. Each region has its own aguardiente, "Antioqueño" from Antioquia, "Cristal" from Caldas, "Quindiano" from Quindío, "Blanco del Valle" from Valle del Cauca and "Nectar" from Cundinamarca. There is also a variety of rum beverages, like "Ron Santa Fe" also from Cundinamarca, "Ron Medellin Añejo" also from Antioquia, "Ron Viejo de Caldas" also from Caldas among others.
The water is drinkable straight from the tap in most of the major cities, but be prepared to buy some bottles if you go to the countryside. Agua Manantial Bottled water is recommended, it comes from a natural spring near Bogotá. Some advice, make sure you do not use ice cubes, or drink any beverage that might contain non distilled water, ask if the beverage is made with tap or bottled/boiled water.
If you are lucky enough, and if you are staying in a familiar "finca cafetera" coffee farm you can ask your Colombian friends not only for the selected coffee quality export but for the remaining coffee that the farmers leave to their own use. This is manually picked, washed, toasted in rustic brick stoves and manually ground. It has the most exquisite and rare flavor and aroma ever found.
In Bogota and the rest of the country, black filter coffee is referred to as "tinto" - confusing if you were expecting red wine.
Also, you can find specialized places where you can drink coffee with many different combinations like Juan Valdez Café or Oma, hot or frozen preparations.
Commercially, you can find a lot of products made out of coffee too like wines, ice-creams, soda-pops and other beverages.