My male loves to play in the current, he is always out swimming around, and if you walk up to the tank he comes right to the front to check you out. He will also follow my finger around, now granted he is looking for food, but I like to think it is cause he likes me! The female is on the go alot too, but her mission is finding anything that moves on the LR. lol She is a bit of a pig! They are very curious by nature and while my girl is shy, the male will come right up and check you out, the seem to be fairly intelligent and personable. Honestly I have the tank in my bedroom and love to watch them as I am going to sleep at night. Very relaxing and entertaining.