you just have to try and get one thats being outgoing in the store, thats what i did and mine was only 1in and he was awesome, he was right up at the front of the tank anytime i came to feed them and he even ate his pellets from my hand one time, he was in a tank with some evil little festae fry a little smaller than him and he was king of the tank for sure, sadly he got stuck in a shell deco and killed himself so i dont know if this personality would have continued into adulthood but from my experience usually if they are already outgoing as babies they will continue to be so, so yeah alot of peoples ebjd may be more shy but there are really outgoing ones out there if you get lucky, i think it also helps to grow them out in a tank where they are the biggest so they can gain confidence