Nothing in particular gives me hope. I think it's more that I'm pretty skilled at manufacturing my own. I'll "scan" the situation, look for the things that could remotely be signs of reasons to have hope, and I'll "collect" all those things, put them in a "mental basket", and somehow find I have some hope.
Maybe, too, though, I don't spend a lot of time thinking about whether I have hope or not. Instead, I'm a "do-er". I think of anything I possibly can do to increase my changes of having hope, do those things, and then look for some more. We don't feel hopeless when we're doing something we think may improve the situation, and we're usually to busy to ponder whether or not we have hope.
Aside from the occasional manufacturing of our own hope, I think it's most effective to do whatever we can to increase the chances of a positive future. If we can't do anything about the situation I guess I think that's when we should manufacture a little hope and be ready for disappointment if/when that comes. We can usually deal with that too.