Excuse me, what tree is this? Is it murraya murraya or smiling? But I don't think it looks like it when it blooms. These flowers are white and fragrant.

I think it should be murraya murraya. Indeed, it is difficult to distinguish these two plants from trees, leaves and fruits. Moreover, both plants have fragrance when they bloom, and only the characteristics of flowers are the easiest to distinguish. Murraya murraya (white flowers with five petals, gathered at the top) and Mizailan (small but many flowers, yellow and round flowers).

Your picture is also a distant view, so you can't see it clearly. Judging from the leaf characteristics, it should also be murraya murraya, the leaf characteristics of these two plants:

Murraya paniculata (odd pinnate compound leaves, 3-9 leaflets, alternate, oval, spoon-shaped obovate or nearly rhombic, entire, dark green, shiny. )

Mizailan (odd pinnate compound leaves alternate, with 3-5 leaflets, leathery and shiny, apex 1 leaflet, smaller leaflets on both sides, smaller leaflets at the base, sessile leaflets, narrowly elliptic to narrowly elliptic lanceolate, 5-8 cm long, obtuse or obtuse at the apex, whole or slightly different, and wedge-shaped at the base. )