When people are struggling with their sexuality, they often need support from others. They want to know that their friends and family will be accepting of them, no matter what. But it can be hard to know what to say and do when you're not sure your friend is gay. Here are some things you can do to be supportive:
Don't pressure them. If you're worried that your friend is gay, it may be tempting to push them to come out sooner. However, your friend may have a good reason for wanting to stay closeted. For example, they might fear losing the love of their family or be afraid of violence from homophobic family members. In fact, by "outing" them, you might actually make their situation worse.
Pay attention to their language. If you notice that your friend is starting to use they/they're pronouns more frequently, it could be a sign that they are questioning their sexuality. You can also pay attention to their body language. Do they have a feminine walk or have a soft-spoken voice? You can also look for physical cues like eye contact, finger length, and body shape.
You can also encourage your friend by being a good role model. Talk about how you feel about your friends' orientation, and how their sexuality doesn't change your feelings for them. You can also celebrate your friend's successes. Remember that your friend may still be coming out to other people, so be prepared for some awkward conversations.