Found via BoingBoing, reddit has a thread about self-mind hacks, subtle social engineering skills and other Jedi mind tricks that may surprisingly make life easier. Caveat emptor, though, these may not work with/on everyone. Still, some of them are pretty nifty like the lead post by poo_smudge:
You know that awkward moment when you and a stranger are walking towards each other but need to get past each other and you get confused and end up doing a left to right dance? Not for me!
When I walk through large crowds of people, to avoid walking into anyone, I simply stare at my destination. I look no one in the eyes. People actually will watch your eyes and they avoid the direction you are going. If I look into people’s eyes as we are walking into each other, we are sure to collide. You have to let people know where you intend to go with your eyes. It always works for me, try it!
And for interacting with other people,
The general idea is that you ask someone for a huge favor which you’re relatively confident they’ll say no to. Then you ask them for a small favor.
Subjects who initially refuse the huge favor have a much higher compliance rate on the small favor than if you just ask directly for the small favor or if you present both at once.
If they end up saying yes to the huge favor, that’s also good.
Check out the thread and see which tricks will work for you.
What is a “mind trick” you know of? (Reddit)