1. Be there for them
Coming out can be the hardest part of accepting who you are, so make sure you can be there for them if that is something they are ready to announce to the world.
2. Ditch any offensive slur of any kind
They may seem like jokes that are funny to drop in a bar or among close friends, but you never know who is struggling with coming out and hearing those kinds of offensive comments will only make this process much MUCH harder. So just don't.
3. Communicate with them often
Make sure they know that they can talk to you whenever they need an ear and a shoulder to cry on. You are their friend and biggest support system.
4. Encourage them
If they seem on the fence about going to a pride event, or talking to a cute individual, be supportive and encourage them. The final decision is always up to them, but try to encourage behavior that you know is healthy for them.
5. Stick up for them
If you see someone bashing on the LGBT society, stick up for it. It may not be directed towards your friend specifically, but it might as well be. And sticking up for the society doesn't change your sexuality, so do not be afraid to preach for what you know is right.
6. Do not favor one sexuality more than another
Being supportive for the LGBT community is very important, as is supporting everyone in the community. This includes transgenders, bisexuals, asexuals, and the list goes on. Try not to only support what is convenient for you.
7. Make plans with them
Make sure they know you are always down to try something new with them. The last thing anyone wants is to go out to a new event completely alone. Just being in their company somewhere they are a little nervous to attend to is supportive by itself.
8. Go on double dates happily
Don't be afraid of any significant others. Offer to do double dates to get to know them more and having you there might calm any nerves your friend has as well and show them you support their love.
9. Offer any help where you can
Sometimes when individuals come out, their home lives change drastically. Offer help wherever you can, even if it is a couch to sleep on or some clothes to wear. Help them work through this stage of their lives until they can get back on their feet.
10. Have fun!
Go out and party! Pride month is all about expressing who you are and having fun with others in the community. Make some new friends and be supportive all the way around.
Being supportive of the ones you love is so important, especially around this time of year when it can be the hardest to express who you are. No matter what side of the spectrum your friend or friends are on, make sure they know that they are loved and you will be there for them whenever they need you, not only this month, but every month from here on out.