(Get someone else to) Make him/her laugh
The Seattle International Comedy Competition is going down all November long (it kicks off with an "Opening Night Gala" at the Market Theater Nov 2nd from 8-11pm), and there's nothing better than getting your date to laugh all night. Unless, of course, it's at you after you ask them if they want to go to your place.
Take her to the (Undead) Prom
There are lots of ways to celebrate Halloween: Seattle's always-popular pub crawl, going to the year's biggest EDM show (Freaknight), or… well, sitting at home and eating all the candy you bought for "trick-or-treaters." But the most romantic one is probably taking her to the EXP's costume dance party, which'll have spiked punch, a photo booth, and live music by Prom Queen.
Try Seattle's sexiest brunch
All fall long, Can Can Kitchen & Cabaret is opening the doors to its sultry subterranean lair for matinee burlesque performances that, while "family-friendly," are still pretty steamy. It also comes with an amazing brunch menu, featuring stuff like crab beignets(!), Dungeness Benedicts, and bottomless mimosas -- which are never a bad idea. Especially on date night… err, date day.