How Can You Tell Sp3 From Sp2?

How Can You Tell Sp3 From Sp2? The main difference between sp, sp2 and sp3 hybridization is that sp hybridization forms hybrid orbitals having 50% s orbital characteristics and sp2 hybridization forms hybrid orbitals having 33% s orbital characteristics whereas sp3 hybridization forms hybrid orbitals having 25% s orbital characteristics. How can you tell the