Pokémon GO Guide: How to Earn XP

As fun as Pokemon GO can be, it can become a grind as players begin to gain levels slower. Much like in most other MMOs, XP is awarded to Pokemon Go players for completing different tasks and achieving various goals in the game. In order for a Trainer to increase his or her level, a required amount of XP must first be gained.
There are many different ways to gain XP in Pokemon Go. The main ways to earn XP and Level Up include Capturing Pokemon, winning Battles at Gyms, Visiting Pokestops, Hatching Eggs, and Evolving Pokemon.
If you are completely new to the game sure to check out the Pokemon Go Beginner's Guide at first.

What is XP?
An Experience Point (often abbreviated as EXP or XP) is a unit which measures a Trainer's progression in Pokemon Go. Experience Points are gained by completing actions and achieving certain goals. When enough XP is gained by a player, he/she will Level Up, advancing to the next level of progression.
Why should you gain XP?
Gaining XP is necessary for increasing your Trainer Level. Players with a higher Trainer Level will be able to capture more powerful Pokemon. Most players seek to gain XP as quickly as possible, with the main goal of leveling up fast.
Where can you Gain XP?
There are a variety of ways to earn Experience Points in Pokemon Go. Some of the best ways to earn XP include Capturing Pokemon, Winning Battles at Gyms, Visiting Pokestops, Hatching Eggs and Evolving Pokemon.
Note: You will also gain bonus XP for certain achievements such as Capturing a New Pokemon.
XP Bonuses
In addition to the main methods listed above, there are also a variety of ways to earn extra XP. Bonus XP is awarded for:
New Captures - Awarded whenever a Pokemon is acquired by a trainer for the first time. This bonus is awarded one time per species. Being that you start out without any Pokemon, in the early stages of the game you will get this bonus very often.
Timing of Throws (Eg. Nice Throw, Excellent Throw) - Capturing Pokemon when the ring around the Pokemon is at its smallest point.
Special Throw (Eg. Curveball) - Awarded for spinning the Pokeball across the screen and capturing a Pokemon. This is different than the standard straight throw.
Whole information about this article please check: https://www.mmogah.com/news/title/how-to-gain-xp-efficiently-in-pokemon-go