While Ireland picked up a point in their Euro 2016 opener against Sweden, Belgium were defeated 2-0 by Italy and Brady is aware that they will be looking to bounce back with a victory over the Boys in Green.
"I'm not sure what they're feeling. We know they're a top class team and they'll be coming in prepared," the Norwich City midfielder told reporters. "They're obviously going to be coming to win, as we are. We'll just be doing our part to get ready for them.
"I'm sure they'll be wanting to pick up some sort of result but we'll be concentrating on ourselves."
After Monday's 1-1 draw against Sweden, Brady believes that Ireland's "pre-tournament jitters" have been shaken off and is keen to "push on" against Belgium and Italy.
"It's a fantastic stage. We're delighted to be here," added the 24-year-old.
"You have to relish it, you can't let it pass you by. We did that [against Sweden]. Hopefully the pre-tournament jitters were shaken off a couple of minutes in and we can push on from here.
"We've got some experienced lads in the team and lads that have played at the top level. You've got to be clued in. Every team has players that can hurt you in a few seconds."
Ireland face Belgium on Saturday June 18 at the Nouveau Stade de Bordeaux.