There are signs in support of the team - and also the All Blacks - on many of the shops here in Samoa's capital, and many flags are flying from cars. Some completely obscure their rear windows.
"It's very important that we play good host," Mr Tuilaepa added.
"There are a lot of media people coming too. Some will broadcast this to the United Kingdom and a kid from Samoa will probably see his house in Fasito'o or Faleatiu and feel that pride.
"He might even say to a blonde that he's with, 'that's my house', but really it's the pastor's house."
Mr Tuilaepa, who, like his New Zealand counterpart John Key is also Minister for Tourism, said the match was a godsend in terms of publicity for his nation.
He said the support so far had been excellent, but that it had to continue.
"It will make them feel proud," he said of the Manu Samoa players.
"All our speeches, prayers and support will prepare them to be brave and be prepared to boot the All Blacks."
In Tuana'i, a village west of Apia, a family has hung All Blacks flags around their home. Asked why, a family member said: "It's good to hang the All Black flags around to show them that we are very grateful to see them.
"I am waiting for my Samoan flags from New Zealand, and [they] should be here before Saturday... and I'm going to put them up as well."