The 49ers this week feel compelled to remind their fans how to be fans.

The team apparently sent out a message to season-ticket holders explaining how and when to cheer when the Seahawks make their last trip ever to Candlestick Park Sunday (1:25, FOX) for the NFC West throw-down.

in the email, obtained by Bay Area radio station 95.7 The Game, the franchise sounds desperate to emulate CenturyLink Field’s crowd noise. Included in the message is groundbreaking advice like “dress the part, be on time” and “stay quiet on offense.”

The 12th Man will undoubtedly mock this for years to come…

I cant believe the 49ers had to send an email to their fans on how to give the homefield advantage. Lmmfaoooo!! pic.twitter.com/tt9uRpObkS

— Racheal Seahawk Webb (@HawkRaRa) December 4, 2013