The textbook I'm reading now has liberal sprinklings of the 儿 character suffixing words that I have not previously seen suffixed.
For example: 空儿。
How should this be pronounced? Are there any rules of thumb for pronouncing the 'er' in cases where the previous character doesn't end in a vowel? (Another example would be 馆儿 although I already know that sounds like 'guer')