Bob,
There are two ways to say "Come Here" in Chinese:
1. 来这里 (LAI ZHE LI)
2. 到这来 (DAO ZHE LAI)
The 1st one is a little bit too formal, 2nd one is better for every day family use.
DAO (4th tone) = to
ZHE (4th tone) = here
LAI (2nd tone)...