Optimus

- You both go out hiking in the mountains for the day

Ratchet

- He took you to the exact location where he proposed to you and he gave you flowers

Bumblebee

- He took you on a mystery trip

Arcee

- She took you on a surprise trip to your favorite beach

Smokescreen

- He made a slideshow with cute pictures of both of you together and put it on a DVD so that you both could watch it

Bulkhead

- He took you to Hershey's Pennsylvania

Wheeljack

- He took you to your favorite restaurant

Ultra Magnus

- He gave you a wooden box with notes about why he loves and respects you