If it's a freeroll, for example SWC every hour 3 prizes, people just shove all in at the start, because they need to double up fast since the blinds and levels go up fast. You'll be far behind if you play really really tight at the beginning. I mean, in freerolls you just fold or shove all in when you have a good hand like AA/KK/AK. So you double up or just wait for all those all in guys to fall out. I just like to wait when most of them are gone so I can play my game. But yea, you wont learn really much while playing with playmoney/freerolls, people just do random stuff