The Warriors welcome Hull to the DW Stadium having improved their attack in recent weeks, and having beaten Catalans 48-24 last weekend.
“The confidence is there at the minute,” Smith told Love Rugby League.
“We’ve been playing a lot better, winning games and beating teams like Hull and Warrington, who have been the best sides in the comp this year.
“We’re in a good place at the minute, and hopefully we can put another big performance in to reach the Grand Final.”
Scoring 48 points against the Dragons also showed that the Warriors had been putting some work into improving their attack, according to Smith.
“We’ve concentrated on that in the last couple of months,” he said.
“Whether that be doing a lot of work in the video room or out on the pitch.
“We’ve really focused on that. It’s a part of the game that we’re going to need to do well at in the next couple of weeks if want to win another trophy.”
“To have six in the Dream Team shows that collectively as a squad they’ve been very good,” he said.
“We’ve got to defend like we’ve been defending. I don’t think there’s been a problem with our defence all year, we’ve been really good in that area.
“To break Hull down, we’re going to need to attack like we have been doing this last month or so.
“I think it’s going to be a close game. They’ll not be much in it. The four times we’ve played them this season, we’ve won two and lost two, and I think there’s only been a try in it.
“I’m not expecting anything different on Friday.”