The common way to pay respect to a buddhist shrine is to bring or
add something of value. Offerings must be bought with purpose. Do
not offer anything casually. You can of course always bring money,
because money is neutral.
Do not think of offering as paying. You will make merit. And
in allowing you to give money, the temple or the monk gives you the
opportunity to make merit.
Rubbing gold leaf on an image of the Buddha will make merit. And it
is a way of making your vows or prayers stick.