my daughter is so sneaky i cant stand it

so me and my SO have been trying to figure out how can we get through to our daughter ! she is 15 about to be 16 months , .. shes been taking maybe 5 or 6 steps when we are at the same level as her . The doctor says she wasnt really worried about it .. but i give birth in august and we really want her walking unassisted by then .. long story short the girl walks when she thinks we are not watching lol . i witnessed her walk the entire living room to our kitchen alone and as soon as we have eye contact she gets on her knees and hands 😂😂 This little girl is funny shes done this about 4 times ..