The summer signing from Cowdenbeath set up Buddies last-gasp equaliser against Inverness on the opening day of the SPL season after coming on as a substitute 10 minutes from the end.
The 23-year-old followed that by making his first start for the Paisley club in the 2-0 victory at Dundee last weekend, which took Saints top of the SPL with Robbo contributing a stand-out performance from midfield.
Now the Buddies will bid to continue building early season momentum by defeating Hibs in Paisley tomorrow, and Robertson is desperate to feature from the start once again.
"Looking back at the first two games I couldn't really have asked for much more from them," he said.
"I was really pleased with what I did in my 10 minutes at the end of the Inverness game. The build-up to the opener had been a bit frustrating for me as I felt that training had not gone well and that maybe I had been guilty of trying too much.
"But when I got on the nerves that had maybe been bothering me disappeared and I felt I made a decent impact, and to set up the goal for Darren McGregor was the icing on the cake.
"I was absolutely delighted to get the start at Dundee and felt I had a decent game. For me I will always remember that one as it was my first start in the SPL and so it will always stand out.
"I know Jim Goodwin is back from suspension for Saturday but I am hoping I have done enough to stay in from the start for the Hibs game.
"It would be great to make back-to-back starts for St Mirren for the first time and to get my first run out at home from the beginning."
The Buddies ace added: "Home form is going to be important for us this season and having drawn our first game it is important that we do everything we can to get the win against Hibs.
"They will be buoyed by the way they came from behind against Hearts in the Edinburgh derby at the weekend so we know it is going to be tough.
"But our confidence is high and the competition for places at the club with everyone fit is so intense that we all know only our best will be good enough."