Ruaridh Jackson believes has vowed to make the most of his chance to impress when Scotland get together for their first training camp under Andy Robinson next week.
Glasgow starlet Jackson was named in a 44-man squad for the three-day session at St Andrews, which begins on Monday.
The 21-year-old was a shock selection in former boss Frank Hadden's preliminary RBS 6 Nations squad.
But he was demoted back to the Under-20s before playing his part - under Robinson - in Scotland A's IRB Nations Cup win in June.
Jackson said: “I’m not saying I was disappointed or shocked when I didn’t get selected to start the Six Nations, but as a player you don’t go into squads thinking you’re just along for the ride.
“The ‘A’ tour was a good experience and the final was a step up in intensity, so it’s great to come back and find the coaches believe you did impress and want you in the full squad.
“But, when I get there I’ll be looking to show what I can do. Learn, of course, and listen and take on board everything I can. But you’ve got to push yourself hard too.”