Welcome to the world of investing. I do not know how new you are but I thought I will give you a few tips:
1. Paper trade before you actually trade.
2. There is lots of info on the internet about trading that you might benefit from.
3. Get to know your charts and level 2.
You said, you do not want to invest too much because if the price drops you can buy cheaper.. Good idea.. Do not invest too much, and if the price drops you can add more shares cheaper. Why would you want to invest too much to begin with?
4. You will not get rich in one day/week/month/year.
5. If you do not take your trading seriously ( points 1,2,3 above). You might be lucky following someone with a good call and making some money, but I assure you it will only be luck.
Decide your style of investing/trading...
Do not listen to anyone on any board/twitter/chat room without doing your own due diligence.
There are pumpers and there are bashers and they all sound very convincing. After a while you will get to know who is who.
With all that being said, I want to wish you lots of luck. Once you get the idea you will enjoy trading very much.
