Would you love a few handy Bulgarian phrases to enhance your experience?
Even in the beautiful city of Sophia, English isn't widely spoken. A great way to get a little further under the skin of a country is to learn a little of the local language. A little effort can go a long way in Eastern Europe.
This isn't full immersion, it's more like dipping your toe in the Danube which will enable you to, among other things, be polite and respectful to your hosts, barter for souvenirs and communicate during emergencies.