Cahill is currently Bolton's joint-top scorer with five goals to his name in 15 matches, and with two in two games this past week.
The defender said: "It's something I wanted to improve upon this year, and I'm hungry for goals.
"When you have scored a few, it breeds confidence. Every time you go up, you think you are going to score.
"I've five now and we're not into January. Long may that continue."
Explaining his new-found prowess to the Bolton News, he said: "I get through a bit of running, getting up and down.
"If I get on the end of things, I stick them in the net. The way we play with set pieces, we are quite dangerous. I go up for throw-ins, so I do get a lot of time up there. I tend to linger about.
"Whether the manager likes it or not, I don't know, but I stay there.
"I just hope the ball falls to me or I can get in an area where I can get a shot off or get my head on it."