Identifying Trends Looking at Charts
The prevailing direction of a trend is higher lows for uptrend and lower highs for downtrend.
The more touches there are the more valuable the trend line. Make sure there are no candle sticks close above or below the trend line. Breaking downtrend line or uptrend line in either direction is a signal for a potential trend reversal.
Identifying Patterns:
Bull Flag
Clear parallel channel represents bull flag. Watch the breakout from the channel and confirmation going upwards from the channel.

Descending Wedge Pattern

Bear Flag
Parallel channel going upwards with the clear break down.

Triangle — pennant

Lower highs or higher lows are going to indicate where the trend is going in the short term.