Telling another person something God has done for you can encourage them to trust in God to help them out.
Cheer someone up. Even sitting down and listening to someone talk about their day can cheer them up! :)
Share your faith. Tell someone about what God has done for you and about what you believe. That seed may lead to someone accepting Jesus and that is the greatest gift of all.
Don't gossip. It can be hard to not gossip, but doing so hurts other people and is not loving our neighbor as ourselves.