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If someone laugh too much, even at stupid things, he is lonely deep inside.

You’ll get more benefit by giving. Applies to both time and money.

If a person laughs at very unfunny jokes, he is alone deep inside.

During social interactions, our feet and legs will mirror those of the person with whom we are talking. When people sit side to side, if they are on good terms, the top leg crossed over will point toward the other person. If a person is uncomfortable, he will switch the position of the legs so that the thigh becomes a barrier.

People who speak two languages, may unconsciously change their personality when they switch languages.