[Mervi]

Quite a few Helenisms have already been mentioned but I haven't seen these:
"Dove's a bird, ain't it?"
"Is the capital of America Washington?"
"Do you think I'm a posh bird if I do this?"
and
"I like a good mouthful."
My favourites are
"It's not as big, it's smaller."
and when Dean was playing 'The Look of Love', she asked
"Is that one of your songs, Dean?"
Wicked!

[minni]

Oh my God...

[James]

Helen to Brian: 'Have you ever been on a plane that's crashed?'

Helen: 'Can you play the Vengaboys Are Coming?'
Dean: 'No'

[Romantic Old Bird]

After listening to Helen chatter on chirpily about her hectic hairdressing/dancing schedule for several minutes whilst washing up together..

Paul: Do you run on batteries?

Helen: (looking totally baffled) battrys?

or

Helen: Does the Queen have blue blood?

Helen: We don't have stalkers in Wales