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Touch is a powerful, subtle, complex non-verbal form of communication. In social situations, touch the language used to convey a surprising amount of various messages. Different touch to express approval, love, acceptance or attention, support, emphasized that point of view, to draw the attention or participation, guidance, welcome, congratulations, establish or strengthen intimate relationships, as well as to confirm the level of intimacy.
For us, touch is the process of making friends in a very important part, because studies show that even the briefest touch, can have a huge impact on our ideas and relationships. The results show that social occasions when strangers meet by chance, even slight, short arms touching, will also be brief and lead to lasting positive effect.
Recommended Books: AboutFace4 essence of interaction design. For example, when a polite way to ask for help or, with a slight touch of the arm will produce more positive results. But be careful: even the most innocent touching, may also lead to other negative reactions. These negative effects include the withdrawal of the arm, escape, frowned and turned to leave, or other dissatisfied or angry expression. These adverse reactions indicate that the other party can not regard you as a potential friend.