The most basic way to wear a necktie is to simply lay it around your neck so that the wide end hangs about 4-5 inches lower than the narrow end. Then, cross the wide end behind the narrow end and loop it over, bringing the two ends together to form a knot.
Alternatively, you can try a bow tie or pussy bow instead. These are a little more casual, but they can still work for a variety of events and occasions.
You can also choose a colorful tie or bow for a playful look, or a neutral one for a more polished and sophisticated outfit. These are ideal options for work or date night.
If you're trying to keep your look simple, you can wear a plain necktie with a crisp white or black shirt and dark wash jeans. You can also choose a colorful tie and pair it with a collared t-shirt and button-up for a casual and laid-back vibe.
If you're feeling really bold, you can try a striped tie with a patterned dress shirt. It can be tricky to make this work, but as long as the patterns are significantly different in scale and you're careful about how they pair with each other, it can work.