How can we enable tap to click function on iPad magic keyboard?

Hello guys,

I just got the new magic keyboard today. Unlucky, it wasn’t wrap as per my gift wrapping request.

Actually the Magic keyboard is work well. Only annoying thing is i don’t know how to enable tap to click function. Thus i need to push on track pad every time i want to click. Also need to push and drop when i want to open app for multitasking which was very bad experience. If possible, please advise me on this problem

Thank you