The Bruins were without top-line winger Milan Lucic and the team’s offense was already sputtering, so it was as good a time as any for Tyler Seguin to step up and do something Sunday night against the Jets. And in the 3-2 victory at the MTS Centre, Seguin responded with his best game of the year. No, he didn’t exactly show off his vast array of offensive skills that cause many people, Bruins management among them, to believe that he will be a special player in the NHL. Instead, he delivered the kind of solid two-way performance that can help a team win a hockey game. His highlights? A net-front tip-in for the B’s first goal, just his third of the year, and a diving backcheck to scuttle an odd-man rush. If you want to win your way into coach Claude Julien’s heart, that’s a pretty good place to start. “You look at (the goal), and you look at the backcheck he made when he had his stick down to break up the play. That’s what he’s capable of doing,” said Julien. “He’s a good player and he’s still a young player. He just needs to build confidence. “Wanting to do that night in and night out, you have to be willing to put the work in and then all of a sudden the skill kicks in. I thought he responded well in a game when we needed him to.”