at some point ,., all i do is to recommend some ideas and point of view understanding,, but how to increase in activity point 
Hard to get what you are asking here exactly but let me try. Are you asking about how to increase your activity ? This requires you to make posts in different activity periods. Activity period is of 14 days and you can see all activity periods start and end date here
https://docs.google.com/spreadsheets/d/12saLhlUoqIdairxzuSPu6EYGrt7FN2lOstO1yDjCEbA/edit#gid=1324892580
Maximum you can get in one activity period is 14 activity. Thus suppose you make 16 posts in current activity period. Your activity will be 14. Once you make a post in next activity period , it will become 16+1= 17.