tolong bantu jawab ya kak

to check someone's understanding we will say ;
*do you understand?
*do you know what i mean?
*do you follow me?
*are you with me?
*do you know what i'm talking about?

to give and to ask someone's opinion;
*how about you? (ask)
*what do you think about...? (ask)
*I think... (give)
*in my point of view...  (give)

to show appreciation;
*thank you
...