In light of this weekend, I'm curious if anyone plans to do anything to promote gun control IRL this month?
I'm interested but not sure where to start.
I recommend starting by contacting your Senators' offices. Phone calls carry more weight than emails or social media DMs. If you're not sure what to say, here's a pretty good template to call a Senator's voicemail box after they have left the office for the day. I'll annotate it to explain why each piece matters.
"My name is [name]. I live in [city]."
(Identify yourself as a constituent right away. People with the power to vote for or against the representative carry more weight than out-of-district contact.)
"I do not need a return call."
(This is a huge favor to the staffer who is listening to your message. If they don't need to call you back, they won't have to replay the message several times to get the contact info accurate. They can now concentrate on what issue you're calling about and where you stand.)
"Please tell Senator [Senator's name] that I support gun control, and ask them to demand Senator McConnell to bring HR 8 and HR 1112 to the floor for a vote. And that I want [Senator] to vote for them."
(cut right to the chase about what issue you're calling about, and a specific action you want to rep to take.)
(HR 8 and HR 1112 are bills passed by the house that are first steps on gun control, enhancing background checks for prospective gun owners. These bills wouldn't come anywhere close to solving gun violence, but decent starts and would force our legislators to get on record with votes on gun control. Right now, Senate Majority Leader Mitch McConnell is blocking this bills from being voted on in the Senate. It's good for voters if these bills go to the floor and force Senators to take even a slight stand on this issue.)
That's all you really need to include. If you want to pick a reason or two to explain why you have this stance, go for it. But you are under no obligation to explain yourself.
It is unlikely you will get through directly to the Senator when calling during office hours unless you are a big donor. However, if you want to speak to someone during office hours, call up the Senator's office in DC or the field office closest to you in your state, identify yourself, and ask to speak with the staffer in office who handles the issue of gun control. The major issues are delegated to staff, and each Senator should have a point person on gun rights. That's the person who will talk with you about the Senator's stance and basic strategy on the issue.
If you want to branch out beyond your two Senators... I recommend targeting Senators up for re-election in 2020, representing a state you have some sort of connection to, like having family there, doing business there, or potentially having future plans there. You don't have to power to vote, but you do have the right to donate to their re-election campaign if you like their stance on an issue important to you. Or donate to their opponent if you don't.
I don't know anything about your political leanings or convictions. But regardless of them, I encourage you to get involved. Participation and advocacy goes a long way towards taking power away from the donor class and back in the hands of the people. And always keep in mind that people who don't have your best interests in mind hope you think you don't have a voice, want you to think you can't make a difference, and really want you to sit this one out.
One last thing on the issue of gun control... the NRA has a LOT of power within the Republican Party and its representatives. The voters who can make the biggest difference right now are conservatives who are willing to get loud and show the NRA shouldn't have the power to be a litmus test for representatives and candidates. A conservative telling their Republican representative that you will support them if they stand up to the NRA and vote for gun control legislation can have a really loud voice right now if they are willing to speak up. There's a lot of Republican legislators out there who want common sense gun law reform but are scared the NRA will bankroll a primary opponent of any Republican who shows support for gun control.
For a more hands-on involvement... I'd check out the Coalition to Stop Gun Violence and Everytown For Gun Safety to see if either of them are your style. I'm a little more familiar with Everytown - I have a high school aged child, and one of Everytown's missions is Students Demand Action, getting student groups organized at the local level and connecting them with others nationally. I like how Everytown advocates at the local and state level, targeting city mayors and state legislatures as well as federal representatives.