Only 20 minutes a day: focus on Vientiane dialect or standard Lao?

I’m a busy professional with very limited study time, and I’m worried that trying to learn 'standard' Lao is making me sound robotic. I really want to interact with locals in Vientiane when I travel, but I’m confused about which particles are essential and which are regional. Should I prioritize learning the most common polite particles like 'dei' and 'jau' early on, or stick to the rigid grammar found in textbooks to build a foundation?