Teen Spirituality

I have a question about how to introduce spirituality to teens. I was a single teenage mom and now I have a teen age boy 17 and girl 15. My son is very charismatic and very “what can I get out of the world”, my daughter is very compassionate, old soul and “what can I give to the world”. With two very different teens how can I introduce spirituality in a way that will appeal to them, especially to my son.