9. Never get caught lying.
Everybody stretches the truth at times, but everyone hates a liar. Ironic, isn't it? Regardless, understand that your credibility and likeability will get crushed if you are caught telling a lie.
10. Say please and thank you.
These two simple phrases make demands sound like requests and inject a friendly tone into serious conversations. It can mean the difference between sounding rude and sounding genuinely grateful.
11. Use positive language (body and verbal).
You can use positive language skills to exhibit yourself as a helpful, constructive person rather than a destructive, disinterested one. Positive body language involves the act of maintaining eye contact while speaking, using hand gestures to accentuate important points, leaning in closer while someone else is speaking, smiling, and mirroring the person you're involved in a conversation with. Positive verbal language concentrates on what can be done, suggests helpful choices and alternatives, and sounds accommodating and encouraging rather than one-dimensionally bureaucratic.
Everyone likes the sight of a genuine smile. Think about how you feel when a complete stranger looks into your eyes and smiles. Suddenly she doesn't seem like a stranger anymore, does she? Instead she seems warm and friendly, someone you wouldn't mind being around for a little while longer.