Naruto Shippuuden Episode 14

[ASSpirine]

I'm a manga reader too, but I'll take extra care not to let people suspect that I'm spoiling when I'm actually just speculating.

You guys need to realise that Genjitsu doesn't require the opponent to look into the users eyes. There are instances to show that there are other ways to let the opponent fall into Genjustu. It's only the Uchihas who specialises in the Sharingan, which activates Genjutsu through their eyes. So, it's definately possible that the Genjutsu that Naruto is in was activatated by seals instead.

However, the reflection theory was really cool and I think I'm quite slow in not realising that it was a possibility.

It had occured before in the series. When Kurenai went behind Asuma's back and started her genjutsu against Itachi. No eyes met there.

[RyougaZell]

And Kabuto's genjutsu during the Chuunin Exam Finals. It put most of the present asleep.