Not to display activity tab on other users profile

Hi,

Sorry to ask such a question here, but i am stuck here.

I have installed flag friend and activity module.

I have created activity tab (a view) along with the sub tab of friends tab.
Its all working fine, but when i open other users profile from my account, i can see the Activity tab of other users also.

I dont want to show activity of my friends to others.

Can anyone please tell me how can i hide the activity tab, so that other users can not view it which viewing my profile ?

Thanks in advance...