I don't usually resort to pick up lines and I'm very upfront but there are two instances where I went out of my way and it worked.
First Incident
Me: I can say 'Good Morning' in six different languages.
Him: Oh that's very impressive!
Me: So which one would you like to wake up to tomorrow morning?
Second Incident
'Si je t'aise à apprendre l'anglais, est-ce que tu m'apprendras comment embrasser à la française?' which roughly translates to 'If I teach you how to speak English, will you teach me how to French kiss?'
Here are 3 pick up lines that I got hit with at the supermarket lol
Are you sure you’re not a parking ticket? Because you’ve got fine written all over you.
Are you an omelette? Because you’re making me eggcited!
I know you’re busy today but can you add me to your to-do list?