Please choose the correct ending to complete the given sentence: Relationships: [header] How to make friends with someone you've never spoken to before [title] Smile. [step] When you see them, greet them with a kind smile. Smiles indicate friendliness and warmth.

Ending1: Not only are they friendly, they may also tease you or congratulate you on your accomplishments. Just look them in the eye and smile your self! [title] Have a good reputation. Ending2: You may have never smiled at or even made eye contact with them before, so they may have no idea that you want to be friends with them. Smiling will plant a seed in their mind that you have some level of interest. Ending3: If someone smiles back, that's a smile! Friendly smiles are an instant start. [title] Offer a seat to the left of them. Ending4: Don't force the other person to smile back. This shows that they matter to you and that you care for them and see their worth.

Answer format: ending1/ending2/ending3/ending4