Good tactic:
Introduce non-metal buddies to some REAL ACTION first, then they will tolerate Opeth no problemo and like it. Give them a smack of Suffocation or Cryptopsy, then they will get the "essence" of metal. Once they understand it, Opeth will be easy.
Whereas if you introduce opeth first then it has non metal parts mixed with metal and will confuse them. So give them the REAL BUSINESS first.
hahaha I like the way speak