Never ever say "he is shy" in front of him！

Don't let him think: :"Oh, I am a shy kid". Say: "Oh, he is been silly now, are you a silly boy?" then tickle him get some laughter out of him might help。 我认为大人不要push孩子，我们要主动和别的小朋友说话，打招呼，then get your kid involed into the conversation like : "Don't you like her dress? it is pretty, isn't it?" OR "I think he is the same age as you." 孩子的social skill 是从大人那儿学来的。 Try to open up ourselves, kids are watching how we socializing, don't push the kids forward.