I know this is a real teachermum question, but how much do you leave your LO to play alone on their mat for example, as oppose to interacting with them, like singing songs and playing with toys with them? I only ask because my LO seems to make a lot more noise (vocalising) when she's left to her own devices on her mat. But at the same time, I don't want to be neglecting her!! Just wondering what other people do. She's 3 months old btw.