Lots of people need YOUR help they have lost hope and need to smile, it wont help to tell a joke, this is serious, they need faith and your the only one who can help. If you see someone who is always sad or is shy invite them to play at recess or sit with you and friends at lunch. If you are someone who has lost hope then ask for a friend or ask to sit with someone else. Do some research about Jesus and start praying for family and friends. Remember you are not alone, do not wait for someone to invite you to sit with them, ask.