The former Gunners and Liverpool winger is training at London Colney as he seeks a new club after being released by Besiktas this season.
He told Fozcast: "I was happiest in a sense of life, at Arsenal. I had a lot of friends – I had a lot of mates from back home who were at university, didn't have kids, didn't have wives, so they were always coming to the games.
"We had a good group of young players at Arsenal – me, Danny Welbeck, Jack Wilshere, Kieran Gibbs, Emmanuel Eboue, Aaron Ramsey, Theo Walcott, Carl Jenkinson – these sort of lads who were all young, doing the same thing, at the same time, and just loving it and having a great time.
"From a lifestyle point of view and not thinking too much, Arsenal was unbelievable. An amazing club, a great place to be, great players, and you're in London – it's great fun. Then the couple of years at Liverpool was just amazing."