Give them a hearty compliment
Your friend might be going through hardship, and he/she would need some intention and care. If you want to make him/her happy, give them a sincere compliment. You can compliment on them with their accomplishments, efforts or their qualities. They will be instantly happy.
Arrange a surprise meeting with them
If your friend has been alone recently, they may need their beloved ones. So, arrange a surprise meeting with him. Every time you spend with him/her will make them happy quickly. They will also be better at the end of the day by thinking about the quality time that you spent together.
Check them whether if they are okay
The easiest way to make people happy is to ask how they are. You can reach them quickly with your phone. Thus, they will remember that they are valued and feel instantly happy.
Give them a gift
Giving someone a gift is one of the most effective ways. As we have just mentioned, they will recall that they are valued. Giving a creative and beautiful gift will make them happy.