I don't know. He's your friend. Of course there's signs. You tell him or her you are experiencing fear because of what you observe; BECAUSE YOU ARE THEIR FRIEND. Practice keeping your friends CLOSER. When you value something, you consciously keep it in your life. If this is an ACTUAL situation; then, if your concern is genuine; then you should get intimate advice and not pool the answer from a web site. Because then you may just take the advice that is COMFORTABLE for you and meanwhile kill your FRIEND via apathy.
Quite a 'loaded' question with the highly debateable term 'faith'---what is it who has it, who doesnt', etc......I like the synonym of faith to be HOPE......'What are signs of a friend who has lost HOPE? Do you think there are signs" What do you do when you see these sign??' Now I can work with this question. We all know about HOPE, however we explain it---a will to live, a joy in living, an inner strength. And when these 'signs' are gone or fading, there's depression, lack of a will to live, and more......What to do??? Perhaps lots of things but for me there really only one thing and that is to LIVE HOPE....To be that conduit of LIGHT & LOVE.....And for me, the good news, is that HOPE is a gift, freely given so I can freely share....And, I do love that the LIGHT can often best shine out of our 'cracks' and vulnerabilities....touching and often healing others as we've been healed....
I agree that it is hard to answer this question with the word faith. Hope is another story. I think to be able to tell if a person is losing hope is on a case by case basis. I don't think there are warning signs that always happen. Some people fake having hope very well while others may mope around. It all just depends.
I work with people who, in times of despair or depression, feel like they no longer have God in their life. Just as when you are speaking to someone who has never had faith, there is no way to show someone a clear path. Being fully present for them is like showing them a signpost, without saying a word. It lets them know it is normal and okay to feel this way. You can remind them that like all things, the feeling is temporary. I the meantime, you can cradle them in your love. You can become the channel through which God reveals Himself. All is in divine order.