yeah I couldn't find an image which showed exactly what I meant, but yes, that is what I had in mind.
Although you seem to be suggesting that you should be able to get a literal exact count of the people. I think that that won't be possible or useful because the data is aggregated over several timepoints. I guess "on mondays, approx 10 people visit" might be useful, but I see this graph as more of a general indicator of how busy a place generally is.
Using a repeating image of little stick people will hint to users that the bars represent visitor volume.