The former Reading man is expecting a frosty reception from the away support.
After a ray of light in the East Midlands derby win prior to the international break Forest lost to Brentford last weekend and need to start picking up regular points to move away from the relegation zone.
The central defender was with Reading for two years and almost guided them to the Premier League in 2011. However he left in controversial circumstances to join Leicester City and is still not exactly popular among the Reading fans.
But he says he is more than ready to deal with the reception he will get from the travelling support this weekend.
He is quoted by the Mansfield Chad as stating:
“I have had a couple of clubs since, so it is not that big a deal for me – I am sure the Reading fans will put on their normal pantomime show for me.
“They like to give me a bit of grief.
“But I will be focused on the job in hand, which is helping to ensure we get the result we want."
Mills has had a mixed start to his Forest career. He was brought in on a free by Dougie Freedman from Bolton Wanderers, where the pair had previously worked together.
He has played 13 times for the club, put in the odd excellent performance, but at times also looked error prone and sluggish.
Hopefully he will put in one of his better Forest performances against his former club Reading this weekend.