When preparing to work in Singapore as a Malaysian, there are a few things you need to consider. Firstly, make sure you have a valid passport and work visa. It's also important to familiarize yourself with the local customs and culture in Singapore. Additionally, be prepared for the higher cost of living in Singapore compared to Malaysia. As for working in Singapore, some may find it more fast-paced and competitive than in Malaysia, so it's important to be adaptable and open to new challenges. Overall, with proper preparation and a positive attitude, working in Singapore can be a rewarding experience.