This is sort of an /r/trees related question, but: Am I the only one who seems to get high just by being around other high people?

For example, I could be around my friends and not have even taken a toke, but once they start to get baked I start acting high. No, I don't do it on purpose, it just seems like I start behaving the same way I do when I'm normally high. I find this somewhat weird. I can't be the only one, can I?