"The big positive that we took out of the 18-17 defeat up in Scotland was that we scored two tries and restricted them to penalties," said Thomas.
"We like to get the ball wide and, hopefully, we will score a few more tries against England because if we win against England the game against Scotland will be almost forgotten.
"We feel we can win every game we go into and we know the mistakes we made against Scotland and have been working on them - the contact area was very competitive and in the end it was penalties that beat us.
"We know we are going to have pick up our game for what will be a big battle but just the fact that we are playing England will be a big incentive for all of us to play well and hopefully there will be a big crowd to spur us on."
Wales Under 20: James Loxton (Blues academy / Glamorgan Wanderers); Kristian Phillips (vice-capt, Ospreys / Neath), Scott Williams (Scott Williams /Llanelli), Ashley Beck (Ospreys / Aberavon), Adam Hughes (Dragons academy / Bedwas); Jason Tovey (Dragons), Rhys Downes (Blues academy / Pontypridd); Aaron Coundley (Dragons academy / Ebbw Vale), Rhys Williams (Blues academy / Pontypridd), Scott Andrews (Blues academy / Glamorgan Wanderers), James King (Ospreys academy / Aberavon), Ashley Sweet (Dragons academy / Cross Keys), Jake Thomas (Cardiff), Josh Navidi (Blues academy / Glamorgan Wanderers), James Thomas (capt, Dragons academy / Ebbw Vale).
Replacements: Simon Gardiner (Scarlets academy / Llanelli), Craig Attwell (Dragons academy / Newbridge), Dan Watchurst (Dragons academy / Bedwas, Sam Pailor (Pontypool), Justin Tipuric (Ospreys academy / Aberavon), Tavis Knoyle (Neath), Matthew Jarvis (Ospreys academy / Neath)