The 20-year-old midfielder is happy with how his trial period elapsed but admits that he would be happy to remain with the Candystripes should no move materialise
The 20-year-old midfielder becomes the second Candystripes player to undergo a trial with Sean O'Driscoll's side with Forest believed to be close to securing a deal for winger Stephen McLaughlin.
And while he believes that he performed reasonably well in his trial, McNamee said that he would have no issues about remaining with the FAI Cup winners.
"To be honest I felt I did OK, so we'll just have to wait and see," McNamee told the Londonderry Sentinel. "I really enjoyed the experience and training with the first team all the time was great."
He continued: "If Forest don't make a move for me, then I'll be only too happy to remain at Derry."
The Donegal-born midfielder admitted that he found aspects of the training difficult during his trial period but suggested that it was not much different to that which he had experienced with Derry City.
He said: "Yes training with the Forest first team was hard at times, but it certainly wasn't something which I'm not used to at Derry.
"It was faster but I think if I was training regularly with them then I would get up to speed with them," added McNamee.
Meanwhile Derry City striker Michael Duffy may also be on his way out of the Brandywell after he underwent trials with Scottish Premier League side Kilmarnock and League One outfit Sheffield United.
"I spoke to their manager Kenny Shiels and he said that he’s going to organise another trial soon," Duffy told the Londonderry Sentinel. "I also felt that I did alright at Sheffield United, so I'll just have to wait and see."
Out-of-contract Duffy, 18, is a former Republic of Ireland under-18 international and recently opted to represent Northern Ireland at U19 level, scoring in their 8-1 Uefa under-19 qualifying round victory over Moldova in October.