@Mr_Grey Some good ideas above. Maybe also removing underwear on a visit to the bathroom & handing it discreetly to your partner on return and visa versa. Otherwise maybe throwing in some innuendo into conversation throughout your evening.
Enjoy you night. You’ll have to report back and let us all know how you got on.
What we done is write some naughty ideas we have on a piece of paper (you could discuss what you want or do it so the other person doesn’t know what’s written) fold up the paper and stick it in a jar, write a fair few out, and on when you need some inspiration, just pull one out of the jar and you got something to work with