Well under them anyway, which is where these guys will likely still find a discrete welcome.
Such at least was the conventional wisdom on the topic back in the day. All those guys kissing and holding hands outside the Iranian's men only clubs weren't gay ... and truth be told they likely weren't, as the term is understood in the US today. In my own judgement (from personal exposure to the Iranian social environment) is that it is a distinction without a practical difference on the individual level and a profound difference on the societal level of consideration.
In Iran, if you want to experience gay love, you can find it almost anywhere men congregate; if you want gay sex, look under the bridges.