Read a play. Read lots of plays. Read a play a day if you can. (Playwrights love when you read their plays.)
When you come across a part that one of your actor friends would be dynamite in, tell them about it. Immediately.
Even more generous…buy the play and send it to them. Write a little note like, “Just read this play and you’d absolutely crush this role. Enjoy!”
That act of generosity just might be the kindling that leads to an incredible production. And in turn, a deeply meaningful experience for that actor, the other artists involved and the audience who witness passion in action.