Depression became so common nowadays, you never know who is facing this. Even the happiest looking person can have severe depression. It's something people don't like to take about. Also, there are many taboos about it, so we also don't feel comfortable listening to it.
Another thing is our lack of knowledge about it. We don't know what it is, how a person feels about it, and how to help them. Well, we don't have to master on it but there are few basic things we should know; so that we can help others/our dearest one when they need help.
The first thing, I must say is, showing that we are ready to hear. You can build a nice communication with your friends, family, and others; so that they can know that they can open up about depression to you. Most of the time people don't find anyone to talk about their pain and how they feel. So this one step can help many.
The second thing is obviously, helping them out. You should not just listen and leave. Make space so they can vent, listen to their critical inner voice, and help them confront it, help them boost their self-esteem, stick with them, and continue communicating. Never make them feel they are alone in this battle.
And last but not the least, suggest them to take professional help. Most of the time the person who is facing depression can't decide if they need it and when they should go for professional help. Try to convince them that it is for their own good, they can live a normal, depression-free life if they take professional help.
I believe if we can ensure to follow these three basic steps we can help many around us who are going through depression!