What to say to someone who is depressed?

Well there isn't specific thing that you can say. If you want to help the person, you should simply ask them about their depression if they're willing to talk, and try to help them. Maybe indirectly if you want. Be nice to that person and don't judge them, Try to help them and be their friend.

I know this is cliche, but things do get better. You might lose some people in life but you will also gain people in life. Stay strong.

Tell them that you're there for them, no matter what. You mustn't get annoyed or angry at them because of how they feel. They can't help it. You don't have to say anything at all, just let them know you're there for them if they need you.

One thing you can do is try to give them company and make sure they don't feel alone, uncared for or unimportant

The best thing that you can say to someone with depression is just listening. Perhaps ask them if they want to talk about what is going on and if they do, Then you should simply just listen to what they have to say and maybe tell them that you understand.

Don't point out the fact they're depressed just ask if anything is wrong or something like that try acting more casual than concerned but make sure they know in the end you really are worried but don't push it on them

Well, first you should know, don't EVER try to pry at someone/nag them about talking to you. If they don't want to talk about something, let it be for now. You want to make them feel as though you really care, so start off with "Hey, want to tell me what's wrong?" Or something along the lines of that. Also, just listen to what they have to say. Show them that you're there for them no matter what and that you actually care.

There is no specific thing to say -- you just have to be kind and not judgemental towards them. Be patient.

I know it doesn't seem like it now but it will get better and people love you and are there for you. Seek professional help if you need it

There is always a light. You need to force yourself to get up and surround yourself with positive people and positive thinkig It might seem hard in first day. And the next one, but you'll get trough it