Hair System placement
Finding a proper place where hair system may be attached is of utmost importance. The said place can be found either by marking hair line with a marker or by finding some recognizable point locked by the edge of system (mole or single hair).
Afterwards, you will need tape and an alcohol spray, which will prevent instant adhering of the system and let you change its position if necessary. After attaching tapes, spray them with alcohol. It will be then easier to place the system on your head. When you place it right, wait a few minutes until alcohol evaporates and your unit sticks firmly.