The Portuguese attacker was on target in the 5-1 CAF Champions League Second preliminary round first leg qualifier over Nigeria's Remo Stars.
Reisinho was a late off-season signing for the Brazilians but suffered a nightmare debut as he was sent off in the Carling Knockout defeat to Marumo Gallants.
But after scoring his first goal, the former Boavista player expressed his desire to add to his tally in upcoming games for the Brazilians, that includes their second leg against Stars on Sunday.
He said in the Citizen: "I'm still adapting, and I hope to be at my best soon.
"That's football, the first game I got a red card, which is something I didn't want, but it happens. After making my Champions League debut, starting the game and scoring is great. I have gained confidence and I hope to continue with many more goals and assists from now on and help my teammates win games.
"We're very happy with the victory and our efforts, and now is the time to continue because the job isn't done."
Resinho added: “We took a very important step and yes, I think it was a great game for the whole team. It was very hot, but I think the team adapted well to the heat and we took the game very seriously. Everyone was focused from the first minute.”
Golden Arrows coach Manqoba Mngqithi has voiced concern over Mamelodi Sundowns' recruitment strategy, warning that the club's reliance on foreign signings is weakening Bafana Bafana.
Mamelodi Sundowns were held to a 1-1 draw by Siwelele in their Betway Premiership encounter at Dr Petrus Molemela Stadium on Wednesday.
Aubrey Modiba has urged Mamelodi Sundowns to remain focused on the job at hand as they prepare to face Siwelele, while attempting to catch Orlando Pirates.
Mamelodi Sundowns battled to a gritty 0-0 draw against MC Alger in a feisty CAF Champions League showdown on Friday night.
