Centre Ashley Beck says a big crowd can lift the Ospreys in their Heineken Cup clash against Saracens on Friday night.
The Welsh region were beaten 31-26 by Saracens in front of over 41,000 at Wembley Stadium.
The defeat leaves the region third in Pool Five and Beck, who scored two tries, wants an instant response in the retuirn match at the Liberty Stadium.
"Hopefully next week the fans will turn up for us and it will be a different story," said Beck.
"When the crowds turn up it's a big factor. Saracens had a lot of support and they were shouting all the time for them.
"You come up to the English clubs and they've always got a lot of support and they're all behind them.
"It should be nice to run out to a lot of Ospreys fans shouting."
The Ospreys will be defending a proud home record against the English Premiership side at the Liberty Stadium on Friday, having not lost in 17 games.
But their home form is in marked contrast to their away record in the competition with their last win on the road against Viadana two years ago.
And although they secured a bonus point at Wembley, Beck believes the Ospreys paid the price for a slow start.
"It's disappointing to lose when you're so close at the end," said Beck.
"I think they came out a bit stronger than us in the first half. We struggled to start the game.
"It's disappointing but we've got the same team again next week. At least we're going home with something this week which is a positive.
"Hopefully next week it will be the other way round."
Beck says he has made the most of his opportunities with the Ospreys this season and is determined to secure a regular spot in the side.
The 21-year-old has started eight games for the region this season and has featured in all three Heineken Cup games.
"Since the start of the season it's been good being able to play all of the time," he added.
"It's better than last season when you were in and out.
"It's good to be involved all the time and it's just about taking my chances and getting on with it."