Nearly 40 primary school students paired up with grassroots volunteers to promote a tray return campaign at Ayer Rajah hawker centre on Saturday morning.
Aged eight to 10, the children from Qifa Primary School, gave hawker centre patrons stickers to remind them to return their trays. Those who did were given wet tissues or a plastic card holder as a token.
The campaign was organised by the West Coast Garden Neighbourhood Committee (NC), together with West Coast Heights Residents' Committee, West Coast Youth Executive Committee, National Environment Agency and Qifa Primary School.
West Coast GRC MP and Second Minister for Home Affairs and Trade and Industry S Iswaran also attended the event.
West Coast Garden NC member Alwin Tan had helped organise the campaign, after noticing that most patrons in food centres that he visited regularly did not return their trays after their meals.
He said: "This is a very meaningful campaign. Not only are we spreading the message of tray return, we are also encouraging our younger generation to internalise the habit through hands-on involvement."