How do I refresh Youtube App?

[Mycko.23]

Titles says it all.... how do I refresh... It doesnt update quite as fast as the PC...

 

[Begoqui]

I was wondering the same, I can do it in my Iphone with the "Pull-to-Refresh" but not in my Nexus 7, I've tried the sign-out-sign-in thing but it doesn't work, the only way I can get it to work is forcing the app to stop and then reopen it again but it takes quite some time.