It's inevitable that when you become christian your answers to any problem become more Christ-centered. That has happened to me, even though I don't open my bible to every issue I hear from my friends in our daily lives ( maybe because I dont have a pocket version haha) I feel the urge of doing so MANY MANY times. It's hard not to bring God in the equation when you can clearly see him in there right? Sometimes I ask myself the same thing.
Maybe we should consider what is wise depending on the situation. Some people may hear what you are saying even if it doesnt look like it, and some others wont, but neither of both is your fault. If they are close friends and know that you are christian, they should expect a christian advice somehow, without being pushy of course. If the sole mention of God irritates some people, maybe they shouldn't ask YOU for advice knowing that you are christian haha. I converted not so long ago, and now I admit that the words of a dear christian friend affected me more than I thought.She wasn't pushy, but she always gave her sincere opinion. Just try not to look like you are scolding them, sometimes its even better to remain quiet and just show support,they will see a good christian in action, not just by words, and that will hopefully bring them closer to God. I think you will judge better , with the help of the Lord, what's better at a certain moment with a certain person.
PS. Arriba mexico! hahah