SLEY THE REED!
I know, I know … the actual process of ‘sleying the reed’ isn’t as cool or sexy as it sounds, right??
But it is what it is … basically, threading the warp threads through the reed to space them out evenly ;)
I use a reed on my floor loom when I weave my scarves - but some fancy tapestry looms have reeds as well (not mine, mine are more basic!)
OK, thanks for coming to my educational Ted talk, lol! :D