Why didn't Sugu recognize Kirito in ALO When Kirito logs in to ALO with his SAO account, all his SAO skills and points and even Yui's heart are loaded; so we can conclude that the same thing must have happened to his avatar, too. If so, why didn't Sugu recognize him and if not, why is that?
When people were trapped in SAO, their avatars became exactly similar to their real-life bodies, so recognizing someone from real life was possible there.

Kirito at SAO:



Kirito in real life:



But in ALO, it's totally different.

See Sugu and leafa as an example:

Real Life:



ALO:



Kirito's avatar in ALO may resemble his character from SAO, yet it's still different.
A player with that avatar could look totally different in real life. And people that play MMORPG's are not use to talk about their real life at the game.

So, Leafa didn't recognize Kirito because there was no reason for her to do so in a game like ALO.