I think that an easy way to cultivate a "use Perl;" environment is to gather the people together, and go thru the nodes here on Perlmonks in a collaborative fashion, discussing the proposed solutions and their merits. Make it like a party, have beer,wine,etc.

Now this would serve 2 purposes. It would familiarize the people with the types of problems that Perl commomly solves, and show them how to use all the online help which is available.

Maybe break it into 3 hours, beginner,intermediate, and advanced; showing appropriate nodes during each.