How to choose coin to invest in?

I wonder what's your tips for choosing coins?
I usually read about checking white papers, opinions, social media, influencers....
What are your tips?

My advice is: don't trust social media. White papers - of course. And looking for informations for example on forums; opinions, what crypto is often called scam, what crypto has many positive opinions...basic.

Thank you for your answer. I appreciate that. That's interesting what you're writing about social media. It's common that people trust what they see on Facebook or twitter without even thinking it may be fake. And when it comes to money, you have to be careful.

Before going to invest in ICO, it is very important to check for risk factor, whether the site is trusted or not. If planning to invest in ICO, I would like to suggest to go with Spadecoin(SPDC) as I also through it.
Generally, investors and traders are not able to access global market, such as Capital / Commodity / Forex / Bond Markets due to regulatory or other issues.
Spade is a representative platform which will enable unfettered and hassle free investment into various financial products of all major markets across the globe under one roof facilitated by one universal (Crypto)currency – SPADE COIN. It offers a platform supported by one cryptocurrency enabling conversions from all major currencies to settle accounts at very nominal fees and in convenient time.
https://spadecoin.co

Very interesting @spadecoin ! I'm going to check it out for sure It's a like a cryptocurrency AND exchange platform in one?
I'm already satisfied with the exchange platform I use : https://coindeal.com/ Do you think it's possible this Spadecoin could be added to my platform? I don't want to decline mine because I appreciate a lot how clear and intuitive is CoinDeal.

Trading volume. Usually, the ones with big trading volume are more predictable investments. As well there is much more news (although many of them might be tricky tbh) about them.
Altcoins, especially less known ones can be tricky. They give you much better potential to make big gains, yet at the same time, the risk related to them is much higher. Especially in case of pump-and-dump traps you might fall upon.
ICO's. You need to read the whitepaper, the roadmap, check who is behind ICO. As well - how revolutionary and useful for daily use is their blochchain, what solutions are offered etc. Usually, if your reaction is not wow, roadmap and whitepaper are like a copy-paste, then avoid at all the cost. ICO's can give usually best or worst RoI rate.