Or don't talk to the cops.

"Yes" "no" "my name and information are" "here's my license" "you do not have my permission to search" "have a nice day"

Not a word more. Anything else runs the risk of being incriminating whether you're doing anything wrong or not. Note that Miranda rights, when they're read, say "anything you say will be used against you..." Not might or could be, but will. So, don't talk. 5th amendment and all that.

Here's an excellent video on the topic if you have the time to watch.

Also, this all applies to the US I don't know about legal systems in other countries.