The show of respect in Islam is done through offering greetings of peace between individuals regardless of gender, and handshakes between individuals of the same gender. This is the customary practice and religious etiquette when Muslims meet each other in social gatherings.
This custom is different between Muslims and those from other communities. In a multi-religious society and secular country such as Singapore, it is customary to offer a handshake to welcome and show respect to neighbours, friends and colleagues, or to show appreciation at events and ceremonies. This practice is in line with the Islamic principle of preserving the larger common good, especially when Muslims live alongside, and frequently interact with other communities in a multi-religious society.
In particular, at state and national-level events and ceremonies, the principle of the secular government should be upheld and the norms of courtesy and social interaction in our multi-racial and multi-religious society should be observed by all communities, including Muslims. In such contexts, it is appropriate for Muslims to shake the hands of the GOH, regardless of gender, race and religion. Similarly, at public service ceremonies, Muslim public officers are expected to observe this protocol in receiving awards from GOHs which applies to all award recipients.