"Maybe we are not favourites for the title but we have been first for a long time and it's the 25th game [tomorrow]," said Giroud.
"We have to show people that we want to answer [our critics] on the pitch and nothing more. That is the most important [thing] for us, the reality of the pitch.
"After that, if people don't think we can finish first it is not my problem but I know we have a good chance to win the league."
Arsenal are seeking a double over Liverpool after November's 2-0 win at Emirates Stadium and Giroud told Arsenal Player: "It was one of our best [displays] because we played really well and we didn't let them play their game.
"That's why we didn't see a lot of [Luis] Suarez and [Daniel] Sturridge. We kept another clean sheet, so that's what we need tomorrow."