How can you tell which coins will go up in price?

[BTCat]

Put your finger in the wind.

[moonchaser]

Any tips or strategies you can share.

It's easy. If I sell a coin, the price goes up. And if I buy a coin, the price goes down.

Ahahaha! Correct!  Then the logical move is to switch the coins.
The one you intend to sell just hold it and the one you intend to hold just sell it 

[moonchaser]

all altcoins are just pure speculation scam

There is a way to predict that. The coins that get trolled a lot 
When they start getting trolled it means that one or many guys instinctively know that the price is going up and they try to stop it.
Take for example "sdc-have-no-tech". This guy even got a specific nickname to troll SDC 
Meaning that SDC price will go up soon 
There!

[shursight]

all altcoins are just pure speculation scam

All trading is speculation but not all altcoins are scams. All I can say is stay away from new exchanges that list new coins. That is a possible scam

[junglemouse]

watch for abnormal increases in volume for no reason or large communities at starts...

Then pick up as many nickels as possible before the bulldozer runs you over..

[SalimNagamato]

many coins in the 'accumulation phase' sometimes stop getting enough volume, and then delisted
dangerous

it's possible to tell but not 100%
a combination of indicators.
Experience and sensibility and patience is needed.

the most easy way is to just pump it yourself :p

most people will tell you it's a gamble because they suck at fundamental analysis and TA

Coins in the accumulation phase

this is actually a good tip


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whale watching is actually the best method but most people are too jaded for it

[Digdaga]

WWW technique

Watch Whale Watching

or simply do your own research which is pretty hard but possible and Hold for a while.