Wearing tight head bands for long time and repetitive touching of recipient area damage the hair follicles.

At this point (two months) you can consider the transplanted hairs the same as the non transplanted hairs.  So touching and a tight hair band should not alter finsl results. 
It's ok that some of the hairs have not fallen. This happens occasionally. 

Thank you for asking the question.
We suggest the wearing of head-band only for 3 days post-surgery. The idea is to reduce swelling. Touching makes no-difference to the hair-roots. In-fact even if you touch the transplanted recipient-zone the next day still it would make no difference to the hair-root. So, at this time after 2 months you are anyway at the phase where most of the hair is fallen off. So, just sit-back, relax and allow the hair to grow; take its natural course. Hair growth starts around in 3 months and it should take you around 8 to 9 months for a complete result.

Regards, Dr. Amit Gupta