Newbie here. First of all, thanks for the wonderful software. Mobilizon’s Motto in English is nice:
Gather ⋅ Organize ⋅ Mobilize
It can be better, though. I suggest to change Gather to Advertise or Materialize, so it rhymes, like the French motto. What do you think?
Other choices are: Energize, Popularize, Tantalize, Actualize …