Start small if you don't have much capital, as there is always
risk involved. Be prepared to lose all, so you have to set aside if
the investment is lost.
Some bank investment deposit are good. I found UOB ones are not
bad. Every quarter, can get back hundreds or thousands. While some
bank will give over estimated returns.
One of the ways to invest is using CPF, as there's a limit. But
still risk is there.
Property is where you have more $ set aside. You can when you
can pay the downpayment, bank loans and necessary expenses.
There are some other investment like Land banking, wine
investment, oil investment that you have to study and do research
on. As some might be good, but some might not. Find a good advisor
in that company is one of the good start.