Please choose the correct ending to complete the given sentence: Youth: [header] How to handle an egotistical friend [title] Be assertive, not a doormat. [step] A common theme for those who befriend egotists is being unable to stand up for themselves. But, if you want to maintain this friendship, you will have to stop letting your self-centered friend walk all over you.

Ending1: Learn to be clear and brief when you state your needs. [substeps] When your friend asks your advice, actually give your opinion. Ending2: Assertiveness is a key component of any successful friendship. [substeps] Be steady and collected whenever you are around the person, regardless of his or her faults. Ending3: It's not an easy task, but the sooner you improve, the better. Don't let your ego put weight on your assertiveness. Ending4: [substeps] Have trust in your decisions, and you can deal with a pushy person at any time. Go about your day as normally as possible and both of you will be calmer.

Answer format: ending1/ending2/ending3/ending4