Always be respectful and polite. Do not resist if handcuffed. You are probably wondering how you politely decline to answer any questions or take any roadside tests. Do not let an officer's actions or words intimidate you into doing something you have no legal obligation to do. If an officer detects alcohol on your breath, an arrest is almost inevitable.
Most people know when they are arrested.
Tell your attorney the circumstances surrounding the stop and detention. Perhaps you were under arrest prior to being told so. This could be useful information to your attorney. At the time of your arrest, the arresting officer is supposed to advise you of your implied consent notice. Georgia law requires you to submit to state-administered chemical tests of your blood, breath, urine, or other bodily substances for the purpose of determining if you are under the influence of alcohol or drugs.