Be aware of the pods' behavior. Dolphins have their moods just like we do. Sometimes they are sociable, sometimes they are not. Respect their space and feelings. Take your cues from their behavior.
Dolphins communicate with body language, distance, depth and telepathy.
If they want to touch you they will. No one appreciates being grabbed at and dolphins are no exception. If you want to experience being touched by a dolphin, let go of your expectations and open your heart. Honor your own timing. Many times there are a few dolphins and many people.