How we change what others think, feel, believe and do
Classical Conditioning (learning by association) leads us to like people who are nearby when we feel good. Even if they were not involved in making us feel good, after a while we will associate them with the good feeling such that whenever we see them we feel good.
Operant Conditioning (learning by consequences) leads us to like people who reward us. Rewards can include being friendly towards us, smiling and generally acting positively towards us.
Notice how politicians and other would-be leaders always turn up at rah-rah events, parties and award ceremonies, pressing the flesh and smiling like mad.
Find out where the other person gets to feel good (eg. at racetrack, dances etc.) and just be there. Tell them what a great time they are having. Use other liking-related stimuli such as similarity.
Just because people are around when you are having a good time does not mean they are your friends. Even being nice to you does not make them your friend. The best test of friendship is when they have everything to lose and nothing to gain.
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