Yes, you can use "gustar" with people. It´s correct. I like her (ella me cae bien, ella me agrada): nice people. I like her (ella me gusta): attraction.

Everyone told you already, but I want to add this: in the Spanish from Spain we tend to use "gustar" with people when it means... "like" but romantically. We don't use too much if we want to talk about liking our friends. The next step would be "love" in English, which would be "amar". That's used in many countries of America, I believe, but in Spain we use "querer" because "amar" sounds too intense and sometimes fake. When we want to express the love for our girlfriend/boyfriend, husband/wife or sometimes really close family or friends, we use "querer". "Amar" is something we would read in poems, novels, or hear in stage plays or movies. Ah... Sorry I went ahead and told you a bunch of stuff you didn't ask for :_)

Yes ,gustar is like. In spanish, gustar is similar to love but in less intensity.

Gustar = Like It's correct. You can use "gustar" with people or things. For example: 1. I like Peru. 2. I like my t-shirt. 3. I like Stephanie. (It means that she is nice or I'm in love with her). This is an exception when you refer to a person.

It is correct but you do not have to use the comma.