Renshaw, the 26-year-old left-hander, played the last of his 11 Tests in 2018. His form this summer has been top shelf. Renshaw has scored 491 first-class runs this season at an average of 81.83.
"I am ready," Renshaw told AAP when asked about the possibility of a Test recall. "The last few years I have definitely re-thought about how I go about my cricket.
"The Aussie stuff is important but you can get caught up with your mindset and trying to play for that, rather than just playing for my team and doing well for Queensland.
"That is the big learning I have had, along with enjoying my cricket. If [a Test recall] comes then it comes. It will take care of itself."
That was on show in his most recent Sheffield Shield knock of 54 for Queensland against Western Australia where he dug in early during tough conditions before opening up.
"I was talking to Joe [Burns] a bit about it...how at the start of my career when I came in I was quite slow," Renshaw said. "I tried to reinvent myself and become a lot quicker but that was my downfall in the end.
"Now I feel really comfortable being able to flick through the gears when I need to, depending on what the situation dictates. There are a couple of technical changes that I have made, but the insatiable desire to achieve is the biggest thing."
Queensland captain Khawaja, who also spent three years out of the Test team before his recall this year, recently said Renshaw would get his chance again at the top level.
"I spend a lot of time with Usman on and off the field and he is someone I look up to a lot," Renshaw said. "There are definitely some learnings from his career and the way he goes about things. We are similar characters in that way. We both love succeeding and we love batting."