Most of the rules for helping a grieving friend apply when walking with a suicidal friend. Show up. Remind them of your love for them. Be willing to be uncomfortable along with them without running away. Ask if they are suicidal. If they say yes, try to get them to call for help and offer to go with them to the appointment. Making that call with a friend is less scary than doing it all alone. If they cannot bring themselves to make that call, you may have to. I’m not going to lie; making that call may cost you their friendship. But, wouldn’t you rather have them alive to be mad at you? Peace.