At what age do kids show signs of multiple inteligences? And what are the signs parents need to look out for in order to know what they should be focussing on?

I reckon you should always be on a lookout for your child's unique spark of intelligence at any age. Be observant and see if a child had paid special focus on a particular skill set and hone on that talent to develop it further. For example, my mom noticed that I started to be interested in books at a young age (2) and she started to teach me how to read. Then she started teaching me to spell and write by the time I turned 3.