Christian advice: What’s the best way to ask someone out when you’re genuinely interested?

I’m 22, and I’ve developed real feelings for a girl who’s also 22. We’re both Christians and leaders of the Bible study group at our university (we attend different churches), and we’ve known each other for about two years. We’re somewhat close, though nothing romantic has ever happened between us.

In my two previous relationships, it was the girls who made the first move. I honestly didn’t feel much at the beginning — things developed later. But this time, it’s different. I’ve truly fallen for someone before anything even started, and I want to be the one to take initiative.

I’d like to invite her out — something casual, like coffee or a walk. Nothing with strong “dating vibes” right away. But I want to approach it in a respectful and wise way, especially since we’re both in leadership roles and share the same faith.

Also, I plan to do it after June 12 (which is Valentine’s Day here in Brazil), just to avoid the impression that I’m trying to avoid being single on that day — which is a common assumption when someone asks someone out right before.

So for those of you who are Christians (and especially those who’ve been in similar situations), how would you go about this? What would you say or avoid saying?