I know some may not like it, because Wanders use it, but perhaps a call / response could be a goer. Pointing at the croud on the right:
Fever: who do you stand with?!
Croud: We stand with the Phoenix!
Fever: who do you stand with?!
Croud: we stand with the Phoenix!
And then after several returns, start the "stand up for the Phoenix" chant.
If the fever point that way, there will be a good response from the rows to the right.