He said: “We have scored four against Midtjylland, the last opponent before Liverpool.
“We don’t think in conceding a goal, we think about making goals.”
But the under pressure Dutchman did warn his side not to panic and go chasing goals if they get 2-0 ahead.
He believes this could be a tie that is settled in extra-time and is prepared to use the added 30 minutes to seal their passage.
Van Gaal added: “We only have to think we have to beat Liverpool and beat them 2-0 not 3-0 because we can do it in extra time.
“We can do it 2-0 and then we have a chance to reach the next round.
“You know we have scored goals within three or four minutes this season so it is possible.”