Yeah something like that. Try to talk as much as you can in 5 mins.
But I thought its stated that there will be walk-in interviews? If I'm not sleeping the whole day I might go and check it out tomorrow.

It would be weird if everyones wearing casual and you're the only one wearing formal. People will be like...wa lau eh... smart dude!
I'll probably wear formal anyway. And quickly change back to casual once I'm done. Don't feel comfortable wearing formal. Hah! Prefer to just wear singlet and selipar jepun.

Heres what the site says about attire.

Whats business casual? Does it mean you have to wear one of those buttoned long sleeved shirt or just T-shirt will do?