If you're just a casual lifter you should not use creatine.
If you are going to use it...
1. Take a powder (not a pill) that has been proven to not cause bloating in the belly
2. Stay very hydrated
-if you're still very dehydrated then you probably need to boost your sodium levels
-if the sodium doesn't work, increase your potassium and calcium intake
I never liked using creatine because if you want to bloat your muscles with creatine you can just get it naturally from beef. Also, whenever I experimented with it I got cramping in my legs, which never happened before.
If you're really trying to be tedious about your muscle gains, try force feeding. You just consume a high GI carb right before you eat your post workout meal. Strategic manipulation of your insulin levels can really effect how swollen you muscles look.