How to speak Spanish like a true Mexican?

Not asking hot so speak Spanish fluently.
I’m asking how to speak Spanish like a Mexican person would.
For example you’re crazy. "Tu esta loca" or "esta loca"
But a true Mexican would say "Ta loca"

I hope you understand what I’m trying to get at, apologies for offending anybody.

What other general Spanish phrases are there and how would a true Mexican say it?