You will have to set a good example for others to follow. That is where your commitment, passion, empathy, honesty and integrity come into play. Good communication skills and decision-making capabilities also play a vital role in success and failure of a leader.
I think first sentence and last two. The first one is appealing to a pet owner's feelings of wanting to be a good pet owner and the merchant is using that to persuade them to buy the biscuits. The last two sentences are appealing to a person's feelings of loneliness or being left out and using that to convince you to buy a pool. The both appeal to people's emotions in order to persuade them towards action, that's what it means to use pathos.
