Heathrow Airport immigration

Hi
I have been went to Pakistan and stayed their for four and half month. I have been returned to UK. Well at heathrow the immigration officer asked few questions
What business you do
How long you been on this visa
How many employee
How you approach and target clients
It took 2 minutes and stamp my passport.
Note that was my Forth visit in 8 years

Thanks a lot for the update...I will request to everyone to update their experience after coming back to uk. i am planning to go this month for two and half months.

Fingers crossed

Yes best way is be confident