Two ideas, several dates, your choice!

Chill option: picnic/beach around sunset to share and get people together! (Probably at Bogatell)
More playful option: interactive game rooms with arcade type thing (€10). (Look it up as Spark81 in Sant Marti, See video. )
You can sign up to as many dates as you want!
Unable to go any of the dates? Text me and we'll figure something out!