We get a leak once in a while too. First culprit is the P trap as pots and pans in there will push up against the drains which will loosen and leak. Second and very common is the sink sprayer where the line connects to the spray head. The supply lines to the faucet are a possible source but less likely to loosen. Empty the cabinet, dry every thing with towels and then run the water while looking underneath the sink with a good flashlight. Take a paper towel and feel around all supply lines and drain tubes. Most likely a simple tightening of lines or drains will do it.
The ability to follow instructions is highly underrated.
Always be wary of stupid people in large numbers.