Final answer:
To ensure a positive response from a toddler, assume an eye-level position and talk quietly.
Step-by-step explanation:
The best approach to use to ensure a positive response from a toddler would be to assume an eye-level position and talk quietly. This creates a comforting and non-threatening environment for the toddler. By getting down to their level and speaking softly, it shows respect and demonstrates that you are paying attention to them.