These are commands used to tell someone to enter a space. Go in! ; Go inside! ; Go on in! ; Go on inside! ; Go ahead! ; Head in! ; Head inside! ; Head on in! ; Head on inside! ; Step inside! ; Step on in! ; Step on inside! When Urging someone you know (friends/family) who is blocking the entrance in the situation where they’re also heading into the room or the elevator, but they suddenly stop because they’re busy doing something like talking on the phone or looking for something in their bag.. Which commands I can say ? What I mean is: what command phrases can be used to replace “go on in” in the sentences “Go on in, what are you waiting for?” or “Go on in, what are you doing?”, Can I use all : Go in! ; Go inside! ; Go on in! ; Go on inside! ; Go ahead! ; Head in! ; Head inside! ; Head on in! ; Head on inside! ; Step inside! ; Step on in! ; Step on inside!