2 scenarios - first one is if they ask you to try out which means they are interested, 2nd one is you walk in uninvited with intentions of impressing. Both set different times to ask these questions
Pre tryout - Cost to be on the team (fees and what they pay for), coaches philosophy, how often in preseason and during season do they practice, how many games generally
first question once try outs happen is and offer made . where does my son fit in your plans? #1 catcher, backup, upper or lower lineup, lots of playing time, etc. Key is to get on the field most of the time.
costs, expected travel (if they are going out of state and you have to pay hotels, etc. that is a real cost for your family. close to home or a drive for everything (including practices),
what are team rules?
Lastly during tryout hang with other parents . after tryout, does your son seem to "fit" in, does he know boys on the team or see himself making friends with them. For the parent, Do you see yourself hanging around the parents all summer or would they drive you crazy.