Japanese has an expression, shako jirei, which literally means 'social words'. These are things that you say, not because you mean them, but to show that we're all pals. The danger is that your pals will mistakenly believe that you mean what you're saying. Then they'll like you. And then, to keep them liking you, you're going to need to use some more shako jirei.

t r u m p
r o v e r
u v u l a
m e l o n
p r a n k