Hechos 2:43

And fear came upon every soul: and many wonders and signs were done through the apostles.

This verse is the proof of the deductions given earlier in this chapter to the effect that only the Twelve were baptized in the Holy Spirit. Here it is clear enough that the one hundred twenty were not able to do the wonders and signs which accompanied the Twelve, indicating most certainly that they, the one hundred twenty, were not included in the baptism of the Holy Spirit which the apostles received.

Regarding what these signs were, conjecture is idle; however, it is reported later in Acts that Peter raised Dorcas from the dead (Acts 9:41). The signs here mentioned were of such a powerful and supernatural nature that fear came upon the whole community of Christians, and presumably upon many in Jerusalem besides these.