Smoothing a figure

I am making a animation and Cant figure out how to make all the sharp edges smooth. Can anyone help me?

Thanks,

You can either press “set smooth” on the left hand side of the edit buttons (f9), or apply a subsurf modifier - see the tab “modifiers” in the middle of the edit buttons, press “add modifier” and then choose “subsurf” from the dropdown menu. Set the “render levels” to whatever you need, the higher the number, the more smooth your object will be when you render it, but it will take more time to render.