Gardner, who is confident of shaking off a groin strain to face Manchester United, said: "It was nice to get on the scoresheet twice in five days, but I want to get around the 10 goal mark for the season.
"Overall, that's two in eight league games now for me this season so it can be done.
"I've scored with basically the same free-kick both times, driven hard and low, but I am sure I will score other sorts of goals as well, maybe bend one into the top corner!
"But I've scored two in two so I'm not moving away from that ball for the next one.
"Myself and Shaun do a lot of practice but, when it comes to games, it is different when you've got a big wall lined up in front of you, the crowd all around you plus the goalkeeper to try and beat.
"I expect to score from every free-kick. If they don't go in, I am disappointed. I am sure I'll take more."