have marines run around in circles continusally,stop and wave when you come by,and continue? Also my sapien freezes now....help

Use a command list for them to run in circles, and hope they stop and wave when they see you. That's usually what works for me.

You can have the run to command points, but in between stop and look at player, but other then scripting, i don't think there's anyway to make them stop and wave at the player ONLY IF the player is there. They will iether alwais stop and wave at the player (even if they are on the other side of the map), or not. But with scripting, you can make them only do it if the player is around. There might also be a way to do it with conversations, but Iknow nothing about them.