Please space after commas, periods, semicolons, etc.
1. Colin's snorts and giggles died away because he stopped snorting and giggling.
2. As this sentence lacks context, who knows what the writer means by that?
3. To say that somebody stared at his hands as if he were washing them clean makes no sense.
I have to see the whole sentence to know what was intended. (Even then I can't always be sure.) I generally assume that a person asks a question because he wants to know the answer. However, for me to be able to guess at why a writer chose one word over another or one tense over another I would have to see much more than one or two sentences.
Interested in Language