The next point would be trimming with small scissors which am sure you’ve seen it getting done in the parlor after threading, or ones who pluck at their home’s comfort they also use small hair cutting scissors to trim off the brows . But remember don’t over trim your brow hairs and don’t over pluck . Keep them as full and natural as possible . If you do see any stray hairs coming out from here and there then just use a pair of tweezers and pluck them ( here you can’t say no to plucking , and it’s very difficult to get them out with threading ‘cause maximum of the times you may end up with a sharp scratch with the thread on your skin, you won’t end up with any accidental scratches by sudden pulling by a thread if you use tweezers.
If Your brows are over plucked or accidentally over threaded sometimes you may never have (in rare cases though due to threading mostly) hairs grown back in those parts or may end up with a slow growth rate, so you should immediately go in for some hair growth serums available in the market and start using them or start massaging the eye brows gently with almond or olive oil or even castor oil regularly.
Besides the brows thickness , even their shape matters a lot. If you have already stayed on day after day with over plucked and plastic doll threaded eyebrows then it’s time that for atleast once let them grow back to their natural shape and then follow the shape of your eyes and brow bones to get a knowledge of how thick or where to make the brow high or where to make it steep and where to end it’s beginning and where to end it . You may also seek professional and quality help for this. Tweaking the brow hinders the naturlness of the eyebrow shape.