There are many technical things that customers should know but that service providers are either hesitant to approach or do so in full force.

Then the experimenter looks a little embarrassed and starts to explain haltingly that there's been a cock-up.

Owing to little response, his speech tailed off to a hesitant end.

Some read from old lecture notes and then haltingly explained the thumb-worn last lines.

She has found that people' s voices often get higher or shakier when they lie, and they are more likely to stumble over words.