this is very bare right now because i'm mobile but: sil is 25, kind of a dummy but he's got a lot of smarts when it comes to what he does for a living and making logical decisions but then when it comes to trivia, some basic knowledge about science, english, etc. he is pretty dense? he doesn't take a lot seriously either because being vulnerable is something he is not comfortable with so he kind of just fades out when things get really serious discussion wise. he's the type of friend that wants everyone talking about fun things. he really groans when things dive into politics, etc.