There are 4 recognised stages of crest position. Strait up even a little forward is usually nervous. Up but swept back a bit is alert but calm. back a little further is generally relaxed. straight back is kind of like a cat with it's ears back...ready to strike. You can read a lot of this in conjunction with body posture as well. They tend to get real skinny and very still when they are scared. I think they are trying to look like a branch. The majority of 'tiels do like water. I gave mine a mass spritzing today and all but 1 reveled in it. I also have a large dish for bathing available for them at all times. They don't use it often though. Lots of folks take them in the shower with them but I wouldn't try to force them under the water if they don't want to go. Let them find a spot that has the amout of spray they can handle. I like to Offer lots of toys and switch them out occasionally to keep it from getting boring. Mine will take a dip as often as once a week to as little as once a month but I spritz them too! I'm sure you'll get lots of oppinions on that. I kind of let them decide.