Anybody have Dual Citizenship, here?!!!

Need some advice from you.....

Dual Passports questions.....

Both Passports are Current.

Me - My Parents are Thai...

Born in the U.S.A. became a Thai Citizen at 13.

I understand that I can leave the U.S. with my U.S. Passport and enter Thailand using my Thai Passport....to avoid getting a VISA....

What happens when my U.S. Passport doesn't have a DESTINATION?

OR

Enter Thailand with my U.S. Passport and then take a trip to Laos and enter Laos with Thai Passport.

Will there be any complications?

Positive feedback on this would be much appreciated!!!!!

Or if any one knows of a Professional in this matter, please send contact information to my INBOX....THANKS!!!!

TIA.....