Oh, no . . . whatever works (as long as it is in holiness, of course). Paul addressed that in Philippians . . . he said that some were preaching out of evil motive, wanting to make his life harder. But Paul said, either way, the Gospel in preached . . . and so he would rejoice.
As long as we are holy, taking every opportunity to preach the Gospel is right. Of course, this doesn't mean that we drink malt liquer with someone in order to establish a friendship and then preach, or go to the club and "shake it" and then try to preach to people . . . and yes, some people are just that silly as to try something like that. :roll: But if we are holy and living right . . . yes, use every opportunity.
Be Blessed . . . BBoy