Oh my I could make a long list.
Just go for a walk.
Think positive
Do something nice for someone
On face book recently "Get out there and get active and participate"
Last night "Invite a friend over and don't be so alone"
Exercise and diet
I could go on and on. People try to be helpful and don't know how and want to solve the problem. I am ultra sensitive about getting advice about my depression. Not on these forums however. I guess it is human nature to try to problem solve and fix people. Whereas listening, validating, being supportive, and sharing your own experience is much more helpful.