Some people with experienced animals can bell 1 llama let them run, but I can't. Imprinted llamas can be caught in the open, but not mine. I'm new at this and haven't raised any from scratch yet to get them imprinted (2 in the oven right now, though). I've bought all I have right now and only 1 will let me get real close. Typically they'll let you get up to a couple feet away and they take off.
If you want a challenge, try roping one. Those long necks and small heads appear to be a good target for a loop, but DANG they can move them fast. The head will be down to knee high long before the loop gets there. I guess that's why the South American gauchos invented the bola.
