not some people judging his personality by the 1D interviews when he was basically the Posh Spice meaning he was meant to appear 'mysterious' and quiet.
This is either gonna be super awkward or a big success.
To be on Graham's show you can't really sit there and be moody, boring, you have to bring real personality to the front and get involved with the other guests. Or else he'll just look a laughing stock.