I have this confusion about whether to use "here" or "in here"
For example, if I am in an event and speaking with somebody, and I want to express that someone else is also present in this event. Should I say "xxx(the person's name) is also in here" or just "xxx(the person's name) is also here"
Also, when I am travelling in some places and talking with the locals, should I say "I just arrived here two days ago" or "I just arrived in here two days ago"
Also, do they always have the same meaning?