What would an Oasis gig be without Liam's sneer? He parades around the stage on a tour of duty, waddling in his army greens like a duck with shoulder pads. "This next one's for Georgie Best," he announces, the promise sounding like a threat as he launches into Cigarettes and Alcohol. He slurs the chorus unnervingly, as if to emphasise the irony of singing "You might as well do the white line" for somebody whose life was destroyed by substance abuse. But then you remember that Oasis don't do irony.

Just how angry can they still be? Ten years on from their landmark debut album, Definitely Maybe, Oasis filled the Millennium Stadium. Their stellar supporting line-up is a sort of mini-festival called Noise and Confusion, featuring the Foo Fighters, Razorlight and the Coral. I meet one fan who is on his 72nd live viewing of the band. But the band still act like they're bigger than this.

Recent single The Importance of Being Idle gets its own slide show of inspirational quotes that do for ambition what The Little Book of Stress did for nerves. "It is better to have loafed and lost than never to have loafed at all," says one; another declares that "imagination is more important than knowledge". A fitting epitaph for two brothers who claim never to have read a whole book - except that the quote is lifted from Einstein, not their own imaginings.

But Oasis have never been afraid to beg, borrow and steal, cockily recontextualising literary quotes and other bands' riffs for their own purposes. The freshest-sounding song tonight is Mucky Fingers, even though it begins like Sheena is a Punk Rocker and ends like I'm Waiting for my Man, with its persistent strummed pulse. It's interesting, though: a subtle departure for a band who seem freer once Liam is off stage. But the prodigal one soon returns for Wonderwall.

With him comes tension that reaches its peak at the end of Rock'n'Roll Star, when an extended drum solo from Zac Starkey gives Liam a chance to size up his audience before throwing them his tambourine, as is his custom. He takes aim and fires, the crowd jump - and that's it. Some lucky fan has caught a percussion instrument.

The finale of Don't Look Back in Anger gets a hearty response, but the beers have truly kicked in now, and an Oasis singalong always seems like a good idea when you're drunk.

· At the Aberdeen Exhibition Centre tonight. Box office: 01224 824824. Then touring.