[iMore Question]

My Iphone 5 is not letting me access my keyboard while I am using youtube.

[linsiris]

Well the keyboard usually pops out automatically when you are in a "writing space" like the search bar. If not, then try closing the app, make a soft reset (hold power button + home button for 10 seconds) and try again.

[pkcable]

You'll need to be in portrait and then go down to the comments section, and click on it and the keyboard will popup. Unfortunately if the person has comments disabled then you may be SOL!