Ok. let's go with bet sizing.
Minraises and minbets are out. Why? first of all you are offering your opponents tremendous odds
to call with any overcards and any draws. It also makes you look terribly weak (wether you are or not) and thus leads to your opposition calling wide (as in a wide range).
Here's an example:
You are on the button with AQ (suits don't matter). The blinds are 25/50 and you raise to 100. The guy on the BB has 910. It is only costing him another 50 to call so he does. The board comes J Q 5. Great flop. The pot is now 225 and you bet 100 again. You are now giving your opponent 3 to 1 odds to chase that straight. let's say now the turn is a 2. You still have the best hand, but you again bet 100. Your opponent only has to call another 100 into a pot of 425 to see that river card. Not only does he have the right odds to call, but he is porbably also thinking at this time that you have nothing and might call because of that (if he does not know or think about odds). An 8 comes on the river, making the board J Q 5 2 8. Still looks good for your AQ, but your opponent has now made the straight. See what I'm getting at?
If you had bet, say 200 on the flop and followed that up by another 2/3-3/4 sized bet on the turn, your opponent would not have called to see the river, and you would have still gained that additional few hundred chips form his chasing.