Scenario 1: An ex comes out of the blue with an "I miss you" message because of a cute photo you posted on Facebook or Instagram. How do you respond, or not?

You obviously had a connection with this person at some point in your life but there's also a reason you broke up. Whether you decide to respond or not, Meier says good etiquette is all about being kind, respectful and not hurtful to others. "If you are not interested and choose [emphasis on choose] to reply, remember to be direct yet respectful," says Meier. Also: It took the person some courage to muster up a message and hit send so if you're not interested in opening up that door again, Meier suggests you avoid opening the message too rather than ghost them. (Most messaging platforms can show whether you've read their message). According to research by Messenger and Debrett's, 60 percent of Americans say they check to see if someone has read their message while standing by for a response.

Scenario 2: You sent a message that you instantly regret… now what?

Drunk texts be damned! "I always recommend writing something and waiting 24 hours to re-read it first," says Meier. "Then if you still want to send it, at least then you would know you didn't do it in haste or during a mood!" Sound advice for preventing said text but if you already hit send, here's what Meier suggests: "Act fast using a message's unsend function and you may be able to avoid an awkward scenario altogether." Facebook, Instagram and Gmail all have unsend messaging functions and there are apps like TigerText that let you unsend a text (but you both have to have it installed).

Scenario 3: The conversation is going great. But then suddenly… you're left on "Read" for hours.

Hint: Don't panic. "The key here is not to send multiple messages when the person is not replying, and instead have a little patience, and give them time to come back to you," says Meier. According to Messenger, 37 percent agree that sending multiple messages is a no-go although a survey by Grammarly found that 69 percent of Instagrammers think a delayed response is way worse than sending multiple messages, so on the flip side don't ghost, instead give a quick brb.

Scenario 4: It's been two years since you last chatted with an old fling... How do you pick up the conversation?

Open the door...slowly. "Something subtle like a nice comment on a recent photo they post is one way to see if they reciprocate interest in communicating again," says Meier. "If there is interest, you'll likely know, and fast... and only then move into less platonic hints or chat!" And instead of asking "how are you?," Meier adds, try making the question specific to the person such as 'the last time we spoke you were starting a new job. How's that going?'

"You are likely to get a much better response and interaction with a personal question rather than one that makes someone have to dig or think hard to answer," she says.

Dating online is a given these days and messaging and texting manners matter. In Grammarly's survey, 3 of 5 Instagrammers said texting compatibility matters just as much as in-person compatibility. And when you are ready to take the convo offline it helps to know you've got digital chemistry to take the next step. Good luck!