You may not feel lucky, but you are. Welcome to a very confusing, murky world. Be ready to feel many, sometimes contradictory, feelings. This is not a checklist, something to memorize and apply to each survivor. I don't suggest that every survivor wants or needs to hear every item on the list.
Different people respond to their experiences in a variety of ways.
Most of these apply equally to female and male survivors. Tell them you're sorry this happened that it wasn't their fault. If they don't know, that's okay. Don't distract yourself with heroic fantasies of beating up the perpetrator. Offer to make appointments with them and accompany them to counselor, clergy, police, etc.