How to paste when press and hold doesn't work?

Sorry for the newbie question but:

In several apps (Facebook app etc) I don't seem to be able to press+hold the password fields to make a paste option appear. I use lastpass, and have complex passwords so the loss of this functionality makes these apps very awkward to use.

Is there any other way to paste that I may have missed?

Cheers in advance.

I am not aware of any other methods - no keyboard shortcuts for instance. I'm sure you've tried but how about changing the tap or hold or trying a second time. I fear, though, it might be a security issue trying to shortcut password entry???