Possible Clues:

• Makes out, in Manchester
• Canoodles, in Britain
• Makes out, to Brits
• Kisses and cuddles, in British slang
• Southampton smooches
• Makes out with Harry Potter, say
• Songs about kisses under the mistletoe
• Busses in Birmingham
• Kisses and cuddles eventually working up good head of steam
• Frenches, in England