Tip #1Wash your hands before and after you play with your slime. Add a bit of lotion to your hands if the slime too sticky to touch.
Tip #2Keep on kneading your slime. The more you play with it, the more it will become firmer and less sticky to touch.
Tip #3If your slime is still sticky, then add a little bit of activator to your slime. You can try a diluted solution of borax, liquid starch/laundry detergent or a mixture of eye drops/contact solution and baking soda.
Tip #4Add a little bit of lotion or warm water to your slime if it gets too hard or thick.
Add a little bit of shaving cream to your slime if it gets too deflated.
Always keep your slime in an air tight container, away from direct sunlight so it can lasts longer and stays fresh when you play with it again.