I am not a calvinist, however I reject this accusation that they do not evangelize. Charles Spurgeon was reformed and he sure did evangelize.
However, today the situation is very different, the reformed are definately on the decline (they still do evangelize though), and charismatics are on the up and up, due to them putting insane soul-winning hours and some (NOT ALL) unfortunately utilizing tactics such as name it claim it wealth now to attract converts.
Sometimes I feel like the only group within christianity that is booming is pentecostals and non-denominational charismatics, that is how it seems atleast..
We can all improve on soul-winning, a great example of this would be the independent fundie baptist churches in America, they put in a lot of hours.
As for the question, if I was calvinist I certainly would not evangelize, I feel it would be pointless and the fact that I could not honestly tell people Jesus died for them (since limited atonement) would make me not want to do it.
Not in the mood for debates so don't even bother, just stating my opinion and view on it.