You can act quite normally when microdosing.
If dosed correctly (it takes time to find it and depends on the person) micro-dosing (usually around 5 - 20 ug per dose) an obvious effect in not as apparent as you might expect.
For me, 5 to 10 is enough. I don‘t actually want to feel the body high when microdosing. Precisely because it should feel like a normal day. Except your perception, creativity and emotional balance is heightened.