You know it when you see it. You can even probably recall those occasions when someone effectively wielded control over a meeting or an auditorium full of people. The ability to command a room directly enhances one’s leadership power and general influence.

So why is this leadership skill so elusive? Why do some people consistently get attention, and communicate clearly while others fight to get a word in, struggle to convey their points, or fail to be noticed at all?

The ability to have influence in meetings -especially large groups or gatherings of senior leaders- is a critical stepping stone professionally. The good news is you can easily learn to command a room and get more of what you need in any setting.

So what exactly are the tactics you need to increase your executive presence and command a room? Here are some specific, easy-to-implement tips culled from experts in psychology, social dynamics, and even the NFL to make sure you own the room from the start.

Know Your Purpose: How to Work a Room author Susan RoAne says for starters set an intention. As such, enter the room with your intention. As you arrive, pause for a moment with your head up to survey the scene. Move purposefully toward the person or seat you want, which will vary depending on the purpose of the gathering and the room arrangement.

Clock it: Show up early or precisely on time- never late. Walking in late means you need an apology and an excuse before you say anything else. It’s not a strong starting position, and it can be difficult to overcome no matter how great your reason(s) might be.

Body Language: Ground yourself by putting both feet on the floor and sitting squarely in your seat. Plan to slouch later. Similar to your attire, your posture will influence perceptions and first impressions. “The most common mistake men make is hunched shoulders,” says life and business coach Charlie Houpert. To correct your posture, pull back between your shoulder blades and open your chest until the pencils each point straight ahead, Houpert advises. Lift your chin slightly for a final touch as you walk into the room.

Hello, my name is…: Use your polished “go to” introduction to say who you are without fluff or mumbles. Blogger Glennon Melton says we can usually anticipate a number of questions or circumstances and draft responses in advance. Then, when those anticipated situations arise, we’re pulling prepared answers from our memory instead of trying to think through different options running through our heads. “Have 2 introductions ready -one 10-second version and one 30-second version. We have to introduce ourselves all the time and yet few of us have good, interesting information ready to go,” says Melton. This is your first impression for any prospective client, employer, teammate or partner. Make it clear and you will exude confidence.

Yes or No: According to Harvard professor Amy Cuddy, have an opinion. Having an opinion demonstrates that you’ve been paying attention and that you care. Concisely state your perspective. Cuddy suggests that “if you typically have an opinion but struggle to articulate it in a compelling way, write it down beforehand.” Be prepared to also clearly say why. Know upfront what you feel passionate about and what you can live with if it doesn’t go your way.

Ritual: Create a “pregame ritual” to settle your mind and make sure your appearance is ready to go. Like many professional athletes, NFL Hall of Famer Deion Sanders had a famous pregame clothing ritual. In his autobiography, he wrote “On the morning of every game I would lay out my uniform on the locker room floor exactly how I intended to wear it, with the pads, jersey, armbands, etcetera, all laid out on the floor. I would put the pads on in a specific order and that was part of how I’d get into my game mindset.” The rituals of getting ready for an important meeting -practicing your speech, ironing your clothes, charging your phone, picking out a lucky pair of shoes- can similarly work wonders in settling and focusing your mind.