Scotland need to beat Australia in New South Wales on June 5 to avoid an eighth successive defeat and prevent their worst run of losses since the 1970s.
Scotland then face Fiji and Samoa and Brown knows they need to secure victories so he can remember his first involvement with Andy Robinson's squad fondly.
The 22-year-old said: "I have toured twice with the under-20s to Japan in 2009 and Argentina in 2010.
"That was international standard, albeit at age group but you still hold the same values. You have got to perform on the pitch in the end.
"It's great to get away, a tour is always a real highlight in your career and you remember it, but it's the wins we are going over there to achieve."
Brown is one of five uncapped players in the squad, most of whom played in a 35-0 win over England in an A international earlier this year.
And he sees no reason why the squad should be hindered by their wooden spoon in the RBS 6 Nations.
"I played in the A team and we had a good result there," he said.
"There are a few boys who have come up from the A squad into the senior squad.
"Looking in on the Six Nations, there were a couple of results that were unlucky for the team.
"But we are going in with a clean slate and we're looking to achieve over there."
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