On session open, it can follow or fade the previous session. Same with any day as well.
So, on session opening, you try to visualize what has happened on the previous day & session, then try to enter in that direction of the higher trend, even when you are trading the Franky.
For example, today, I wanted to short, because the PA was indicating that it could likely reverse the yesterday's move & close below 1280. So, I was looking to short the Franky, not long it.
a. First chart is the Daily inverse chart of the EURUSD. The highlighted candle is yesterday's trading range. Now, if you think, what can the next day to, continue that move or reverse it.
Given that I had my levels at 1370s, and the price did react to it yesterday, it's close was weak, so I wanted to sell it.
b. The second chart is the 6H chart, most of the sessions are 6 hours, so you can get an idea of every session with it. The highlighted candle is the trading of Asian session or your overnight range.
Notice that it was an inside bar, meaning the rejection that happened from the high, the bounce off of the low was not that great, and the close of Asian is also not strongly bullish.
So, I was looking to enter a short as near the high of the Asian range as possible, looking for a break below 1280 in the London session. I exited it for 25 pips only, because of the HCOB data coming in, I did not want to wait for any break of the low. My entry was at 1337 & exit at 1312 on an average.
c. The third chart is 12H for another visualization. It is inverse. Notice the second 12H from yesterday, it's close is bearish (bullish on inverse). So, you would ideally want to see a follow through of that reaction till yesterday's low.
The point is, you try to see that day & session picture, and try to follow or fade the session depending on what you are seeing. There are clues to decide if you should follow or fade it.
A close below 1280 today will be really important, because otherwise, it will have failed above yesterday's low. Think of it simply as, if you want to see momentum, you want price to break highs & lows.