Applying Grimas Mastix Extra (or Mastix Watersoluble in a training course situation) as the adhesive, press the cut surface/obliquely cut side into the glue.
Absolutely do not use near or above the eyes. Please note: during attachment, keep the cut surfaces tightly together to ensure a full moustache, also after modelling.
Press the adhesive edge onto the skin with one hand, and model the Wool Crepe moustache with the other hand; you can do this with the end of a pin-tail comb or the back of a brush.