proofreading

You shouldn't also try to develop some common interests with your girlfriend. Have
you ever tried to ask her to go hiking with you? I think it's a suitable way to spend yourweekend. It is better than reading in McDonald's. You could also join some interesting groups together.

You shouldn't also (咁奇怪既?你係想話should also呀嘛?) try to develop some common interests with your girlfriend.

Have you ever ASKED (ever已經嘗試去做既意思, 所以唔使try, 同埋have之后要用pp..) her to go hiking with you?

I think it's a healthier way to spend your weekend than to (reading)(唔要ing )in McDonald's.

You could also join some interest groups together.

You should try to develop some common interests with your girl friend. Have you ever ask her to go to hiking with you? I think it is a health way to spend your weekend compared with read magazine in McDonald's. Both of you can also join some interest course in spare time together.