In addition, manipulation of an object supports your child's cognitive development as it simultaneously provides a way of sharing the interest of the social partner, understanding the properties of objects, and engaging in social play (Garvis et al., 2019 & Shin,2012). What’s more, Shin (2021) found that sensory materials provide opportunities for infants to explore materials freely and directly using their senses, which fosters young children’s social development. Children are competent and effective communicators, and they are born with the curiosity and intrinsic motivation to participate in social interaction and engage in various communicative means to explore their world (DEEWR, 2022). They follow a development sequence in the acquisition of communication skills, which commences with the prelinguistic behaviours: joint attention (Garvis et al., 2019). Joint attention as a social cognition skill supports infants in developing various social communication means with peers. Joint attention is considered as the ability to experience shared attention on the same object with a social partner (Shin, 2012). Infants communicate with each other through joint attention during play interaction (Degotardi, 2017).