Should I be making 'liaison' errors intentionally to sound less formal?

I'm heading to France for a month and I'm worried that my 'perfect' school-book pronunciation makes me sound like a textbook, especially with my over-pronounced liaisons. Should I relax my speech when interacting with locals in cafes or shops to sound more conversational, or is it better to err on the side of caution? I am asking specifically about learning French, not a generic study routine.