Thanks for the tips Valerie.
I won 5 extra clicks on my very first click on ClixGrid! Haven't had any luck since then. I try to pick whichever spot my mouse falls on it, so it is completely random - they say first instinct is usually correct! I use all 25 chances daily, and haven't been discouraged yet - I'm only 155 clicks into my time on here.
Edit: How about that, won 5 extra clicks this time too!