Poking is familiar action on social networks, especially in the Vietnamese user community. People like to poke while using social networks to reach out to someone as they care or a convrsation starter. In addition to just an action, poking on the social networks in Vietnam also has a classic social layer specific to online community. When referring to poking on social networks, people think of poking someone with a gentle poke to have them remember you or show intimacy. Poking on the social networks has become a style of interaction that is familiar to the youth in Vietnam, and it helps to make online relationships even closer. Consequently, poking on social networks becomes popular and plays an important role in online life of the youth in Vietnam.