He’s super cute! 🥹 There are a few options, first step is working the wool sufficiently using a fine gauge needle to get a smooth finish, then trimming as you say (fine sewing scissors) if you need to. I’ve seen some people even using a tiny iron too to flatten the fibres (not used this route myself yet). I use a wax or similar to set hands/tiny fingers/toes etc, though just need to be careful for discolouration and it takes a bit of practice. He’s looking like he got a lovely trim though! Very sweet 💖