default
{state_entry(){// set sit target, otherwise this will not work llSitTarget(<0.0,0.0,0.1>, ZERO_ROTATION);}changed(integer change){if(change & CHANGED_LINK){key av =llAvatarOnSitTarget();//evaluated as true if not NULL_KEY or invalidif(av){llSay(0,"Hello "+llKey2Name(av) +", thank you for sitting down");}}}}