It is hard to say what is really cool these days. Besides the fact that it's just a matter of opinion, cool isn't a term used much by our circle anymore, having lost all vigour when our moms started using it in the 90s.
"Goin' boardin'?" my mom would say in an upbeat tone.
"Cool, cool..." she would reply, adding "Right on!" or something constructive that might sound reminiscently on your level, with the motherly testament they just can't seem to shake. Oh, how we love our moms.