Romantic ways to give someone a necklace?

Answer 1

On a teddy bear or or some stuff animal, preferably her favorite animal, if she likes your cologne or if you even have any, then put a little on the animal too.

Answer 2

1. Surprise them by slipping the necklace into a bouquet of flowers and presenting it to them.
2. Create a treasure hunt with clues leading to the necklace's location.
3. Plan a romantic dinner and have the necklace waiting for them at the dinner table.