I don't have any trouble approaching girls in English. I don't need a plan or anything, I just say hi and start talking. But when I'm approaching girls in Spanish, this tactic fails almost 100% of the time. I'm conversational in Spanish, and have plenty of Spanish-speaking friends, so it's not a matter of not being able to speak, it's a matter of not being able to come up with something to say on the spot. So, I need a plan. I need a few opening dialogue scenarios that I can stick to when I can't think on the fly. (The examples can be in English, I just need ideas.)

TLDR; I need ideas for opening dialogue. What do I attempt to talk about?